Avocado BLT Grilled Cheese

Featured in: Savory Toasts

This Avocado BLT Grilled Cheese elevates the classic sandwich by combining crispy bacon, fresh lettuce, ripe tomato slices, creamy avocado, and melted cheddar or Monterey Jack cheese between buttery sourdough bread. The preparation takes just 20 minutes total, making it perfect for a quick lunch or dinner.

The key to success is cooking the bacon until perfectly crispy, buttering the bread generously for that golden exterior, and assembling layers carefully before pan-frying until the cheese melts and the bread reaches a beautiful golden brown. Serve immediately while warm for optimal flavor and texture.

Updated on Sun, 18 Jan 2026 15:18:00 GMT
Golden, buttery sourdough grills to perfection in this Avocado BLT Grilled Cheese, oozing with melted cheddar and stacked with crispy bacon.  Save
Golden, buttery sourdough grills to perfection in this Avocado BLT Grilled Cheese, oozing with melted cheddar and stacked with crispy bacon. | butterhearth.com

The skillet was too hot, and I could smell the butter starting to brown too fast. I panicked, slid the sandwich off the heat, and stood there wondering if I'd ruined it. But when I peeked underneath, the bread was this perfect toasted gold, and the cheese had started to soften into the bacon. That's when I realized grilled cheese isn't fragile, it's forgiving. This avocado BLT version came later, after I got brave enough to stop following rules and start layering whatever made me happy.

I made this for my sister after she had a long shift at the hospital. She sat at the counter, still in scrubs, and took the first bite without saying anything. Then she closed her eyes and nodded, which is her version of a five-star review. We didn't talk much that night, just ate our sandwiches with the radio on low. Sometimes a meal doesn't need to be fancy to feel important.

Ingredients

  • Sourdough or country white bread: The structure matters here, you want something sturdy enough to hold all the fillings without getting soggy, and sourdough adds a slight tang that plays well with the richness.
  • Unsalted butter, softened: Softened butter spreads easily and crisps up evenly, giving you that golden crust without burning, and unsalted lets you control the seasoning.
  • Cheddar or Monterey Jack cheese: Cheddar brings sharpness, Monterey Jack brings creaminess, both melt beautifully and hold the sandwich together like edible glue.
  • Thick-cut bacon: Thick-cut stays crispy and doesn't shrivel into nothing, and the fat renders out to give you real bacon flavor in every bite.
  • Ripe avocado, sliced: It has to be ripe, firm avocado won't spread or soften, and the creaminess is what makes this sandwich feel luxurious instead of just stacked.
  • Medium tomato, sliced: Fresh tomato adds acidity and juice, cutting through the richness, just make sure to blot it lightly so it doesn't make the bread wet.
  • Romaine or butter lettuce: Romaine gives you crunch, butter lettuce gives you tenderness, either way it's the fresh green note that keeps things balanced.
  • Salt and freshly ground black pepper: Don't skip seasoning the avocado and tomato, it wakes up their flavor and makes them taste intentional instead of like an afterthought.

Instructions

Crisp the bacon:
Cook the bacon in a skillet over medium heat until it's crispy and the edges curl up slightly, then move it to paper towels to drain. Don't rush this part, good bacon is the backbone of the whole sandwich.
Butter the bread:
Spread softened butter on one side of each slice, all the way to the edges so nothing stays pale. This is what gives you that even, golden crust.
Build the layers:
Lay two slices buttered side down, then stack a slice of cheese, bacon, lettuce, tomato, avocado, a pinch of salt and pepper, another slice of cheese, and finally the top bread, buttered side up. Press gently so everything sticks together.
Grill low and slow:
Heat a large nonstick skillet or griddle over medium-low and place the sandwiches in, cooking until the bottom is golden and the cheese starts to melt, about 3 to 4 minutes per side. Press gently with a spatula, but don't smash it flat.
Rest and slice:
Pull the sandwiches off the heat and let them sit for a minute or two so the cheese sets slightly and doesn't ooze everywhere. Slice in half and serve while still warm.
Savor the Avocado BLT Grilled Cheese, with creamy avocado slices and fresh tomato peeking from between golden, crunchy bread.  Save
Savor the Avocado BLT Grilled Cheese, with creamy avocado slices and fresh tomato peeking from between golden, crunchy bread. | butterhearth.com

There was a Saturday morning when I made these for breakfast instead of lunch, and my roommate wandered into the kitchen half-asleep, drawn by the smell of bacon and butter. We sat on the porch with our sandwiches and coffee, and she said it tasted like something you'd order at a cafe but better because it was warm and made with care. I think about that whenever I make them now, how food can turn an ordinary morning into something you remember.

Choosing Your Bread

Sourdough is my first choice because the slight tang cuts through the richness and the structure holds up under heat and weight. Country white works if you want something milder and softer, and it crisps up beautifully without being too dense. I've tried whole grain, but it competes with the other flavors instead of supporting them. Whatever you choose, make sure it's sliced thick enough to hold everything without collapsing.

Getting the Cheese Right

I used to think cheese was just cheese, but in a grilled sandwich it's the thing that either holds it all together or makes it greasy and slidey. Cheddar melts slower but adds sharpness, Monterey Jack melts faster and stays creamy, and using one slice on the bottom and one on top creates a kind of cheese net that catches all the fillings. I've learned not to overload it, two slices per sandwich is enough, more than that and it oozes out and burns on the skillet.

Serving and Storing

This sandwich is best eaten immediately, while the bread is still crispy and the cheese is melty and the avocado hasn't had time to oxidize. If you need to hold it for a few minutes, keep it on a wire rack so the bottom doesn't steam and get soggy. Leftovers don't reheat well, the lettuce wilts and the avocado turns brown, so I just make what I plan to eat right then.

  • Serve with a handful of chips or a simple green salad to keep it light.
  • If you want a dipping sauce, try sriracha mayo or a little balsamic glaze on the side.
  • Cut it diagonally, it just tastes better that way, I don't make the rules.
Perfectly melted cheese binds the Avocado BLT Grilled Cheese, featuring crispy bacon, crisp lettuce, and ripe tomato for a savory bite. Save
Perfectly melted cheese binds the Avocado BLT Grilled Cheese, featuring crispy bacon, crisp lettuce, and ripe tomato for a savory bite. | butterhearth.com

I've made this sandwich on bad days, good days, and days that didn't feel like much of anything, and it's never let me down. There's something quietly dependable about butter, bread, and a few things you love all pressed together until they become one thing.

Recipe Questions

What type of bread works best for this sandwich?

Sourdough or country white bread are ideal choices. Both have sturdy structures that hold up well to the fillings and create a golden, crispy exterior when pan-fried. You can also use brioche for a richer, buttery result.

How do I keep the avocado from browning?

Assemble the sandwich just before cooking to minimize exposure to air. You can also lightly brush the avocado slices with lemon or lime juice, which prevents oxidation while adding a subtle brightness to the flavors.

Can I prepare this ahead of time?

It's best served fresh and warm, but you can cook the bacon and slice your ingredients in advance. Assemble and cook the sandwiches just before serving for the best texture and cheese melt.

What are some flavor variations I can try?

Add a spread of mayonnaise, pesto, or aioli for extra creaminess and flavor. You could also include crispy fried onions, caramelized garlic, or a touch of hot sauce for different taste profiles.

How do I achieve the perfect cheese melt?

Use medium-low heat and cook slowly, about 3-4 minutes per side. This allows the cheese to melt completely without burning the bread. Pressing gently with a spatula helps the cheese distribute evenly and speeds up melting.

Can I make this vegetarian?

Yes, simply omit the bacon or replace it with a vegetarian alternative. The sandwich still delivers great flavor from the avocado, fresh vegetables, and melted cheese. Consider adding extra vegetables like sliced cucumber or roasted red peppers.

Avocado BLT Grilled Cheese

A decadent twist combining crispy bacon, fresh lettuce and tomato, creamy avocado, and gooey melted cheese on golden buttery bread.

Prep duration
10 min
Time to cook
10 min
Complete duration
20 min
Created by Grace Mitchell


Skill Level Easy

Heritage American

Output 2 Portions

Dietary considerations None specified

Components

Bread & Dairy

01 4 slices sourdough or country white bread
02 2 tablespoons unsalted butter, softened
03 4 slices cheddar or Monterey Jack cheese

Meats

01 4 slices thick-cut bacon

Vegetables

01 1 ripe avocado, sliced
02 1 medium tomato, sliced
03 2 leaves romaine or butter lettuce

Condiments & Seasoning

01 Salt and freshly ground black pepper to taste

Directions

Stage 01

Prepare the bacon: Cook bacon slices in a skillet over medium heat until crispy, approximately 5-7 minutes. Transfer to paper towels to drain.

Stage 02

Butter the bread: Lightly butter one side of each bread slice evenly.

Stage 03

Assemble the sandwiches: Place two bread slices buttered side down on a clean work surface. Layer each with cheese, bacon, lettuce, tomato, and avocado slices. Season avocado and tomato with salt and pepper. Top with remaining cheese slices, then cover with remaining bread slices buttered side up.

Stage 04

Cook the sandwiches: Heat a large nonstick skillet or griddle over medium-low heat. Place assembled sandwiches in the skillet and cook until golden brown with melted cheese, approximately 3-4 minutes per side, pressing gently with a spatula.

Stage 05

Finish and serve: Remove sandwiches from skillet and let cool for 1-2 minutes. Slice diagonally in half and serve immediately.

Necessary tools

  • Skillet or griddle
  • Spatula
  • Knife
  • Cutting board

Allergy details

Review each component for potential allergens and consider consulting with a healthcare provider if you're unsure about certain ingredients.
  • Contains wheat from bread
  • Contains milk from butter and cheese
  • Contains pork from bacon
  • May contain egg if using mayonnaise

Nutritional information (per portion)

These values are estimates only and shouldn't replace professional medical guidance.
  • Energy Value: 600
  • Fats: 38 g
  • Carbohydrates: 41 g
  • Protein Content: 23 g