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Home » Weeknight Meals » 30 Minutes or Less

B.L.A.T. Sandwich (Bacon, Lettuce, Avocado, and Tomato)

by lena

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Forget about the traditional BLT and make this B.L.A.T. Sandwich instead! Crusty bread is layered with bacon, lettuce, avocado, and tomato, then finished with refreshing basil aioli.

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2 halves of a bacon lettuce avocado and tomato sandwich on top of each other.

Bacon, lettuce, avocado, and tomato sandwiches​​

Want to know how to make a BLT sandwich even better? Add avocado! This B.L.A.T. Sandwich is a quick and easy lunch idea that’s too good to pass up. 

a BLAT (bacon, lettuce, avocado, and tomato) sandwich cut in half on a white plate.

This best-every BLAT sandwich layers all of this goodness on thick slices of sourdough bread:

  • Bacon
  • Lettuce
  • Avocado
  • Tomato

Fresh basil leaves and a garlicky, herbaceous basil aioli finish it off, leaving you with an ultra-savory and irresistible sandwich.

a BLAT (bacon, lettuce, avocado, and tomato) sandwich cut in half on a white plate next to chips and a jar of basil aioli.

The best thing about this bacon, lettuce, avocado, and tomato sandwich is that you can prepare the fillings days ahead of time. Just keep them in the fridge and start layering whenever you’re craving a sandwich for lunch. Serve it next to french fries, chips, tomato salad, or green beans and enjoy!

ingredients for a BLAT sandwich on a white tray.

Ingredients and substitutions

The ingredients list may sound obvious, but there are a few particular items you need to make every bite of this sandwich completely irresistible: 

  • Bread – Thick slices of crusty bread, like sourdough, hold all of the hearty sandwich layers in place. You can use regular sandwich bread, but make sure it’s toasted well so the sandwich doesn’t fall apart or become soggy.
  • Bacon – Grab yourself some thick-cut bacon and cook it until crispy! Feel free to use turkey bacon to keep things lighter or veggie bacon to make a vegetarian BLAT sandwich.
  • Lettuce – Keep it simple and stick to romaine or iceberg lettuce.
  • Avocado – Creamy avocado is the best way to make any BLT sandwich even better.
  • Tomato – Slice large ripe tomatoes, like beefsteak or heirloom tomatoes, and lay them in the sandwich.
  • Basil – Fresh basil leaves really brighten up the sandwich but you can leave them out if you want.
  • Basil aioli – This homemade aioli is so herbaceous, bright, and garlicky. It’s easy to make with mayonnaise, fresh basil, garlic, and lemon juice. Feel free to make extras and use it as a dipping sauce with air fryer artichoke hearts, crispy ranch potatoes, and shishito peppers.
3 images with sliced tomato, toasted bread, and the ingredients for a BLAT sandwich.

How to make a B.L.A.T. sandwich

This sandwich is ready to eat after a quick 15-minute prep time. Here’s what you need to do:

  1. Make the basil aioli: Mix all of the aioli ingredients together in a mason jar with a spoon or an immersion blender.
  2. Cook the bacon: Air fry or pan fry the bacon slices until crispy. Transfer to a paper towel-lined plate to drain.
  3. Assemble the sandwiches: Toast the bread slices and spread some basil aioli on each one. Add the lettuce, tomato, avocado, bacon, and basil. Top with another slice of bread, cut in half, and enjoy!
4 images showing how to assemble a BLAT sandwich.

Tips and tricks

  • Sandwich layering tips – Always layer lettuce or basil over the aioli-covered bread slices to protect the bread from the juicy tomatoes. This way, their juices won’t seep into the bread. Also, if the bacon slices are too big and spilling over the edges, feel free to cut them in half.
  • Salt the tomatoes – Once the tomatoes are sliced, lay them on a paper towel and sprinkle salt on top. Let them sit for 10 minutes before blotting them dry. The salt will help drain the juices and make the sandwich less messy.
  • Instead of basil aioli – Use regular mayonnaise, ranch dressing, or make my smoky garlic aioli instead.
  • Add a spicy kick – By stirring up to 1 tablespoon of adobo sauce from a can of chipotle peppers into the basil aioli.
2 halved BLAT sandwiches on white plates next to a jar of basil aioli.

Make-ahead tips

This sandwich makes for a quick and easy weekday lunch, especially when all of the layers are ready to go ahead of time. Lucky for you, everything can be prepared in advance:

  • Bacon: Cook the bacon slices ahead of time and keep them in a sealed container in the fridge until it’s time to assemble.
  • Vegetables: Keep the sliced tomato and torn lettuce leaves in separate containers in the fridge. The avocado is best when it’s sliced fresh.
  • Basil aioli: The sandwich sauce can be made up to 1 week ahead of time and kept in a sealed container in the fridge.
womans hand holding one half of a BLAT sandwich.

Looking for more easy lunch ideas?

  • Mediterranean Toast with White Bean Spread
  • Air Fryer Chicken Banh Mi
  • Easy Ham and Cheese Crepes
  • Pan-Seared Miso Salmon Rice Bowls
  • Citrus Grilled Shrimp and Avocado Salad

Did you try this B.L.A.T. Sandwich? Let me know what you think in the comments below, or share a picture on Instagram! I love to share all of your recreations on my page.

B.L.A.T. Sandwich (Bacon, Lettuce, Avocado, and Tomato)

5 from 3 votes
Prep Time: 10 mins
Cook Time: 15 mins
Total Time: 25 mins
Servings: 2 servings
Author: Lena Gladstone
Print Recipe Pin Recipe Rate this Recipe
Forget about the traditional BLT and make this B.L.A.T. Sandwich instead! Crusty bread is layered with bacon, lettuce, avocado, and tomato, then finished with refreshing basil aioli.

Ingredients

Sandwich

  • 4 slices sourdough bread cut 1/2” thick, toasted
  • 6 slices thick-cut bacon cooked until crispy
  • 2-4 leaves lettuce washed and dried
  • 1 large tomato thickly sliced
  • ½ large avocado pitted, peeled and sliced
  • 6 leaves fresh basil
  • ¼ teaspoon kosher salt or more to taste
  • 4 teaspoons mayonnaise for toasting bread or sub for butter

Basil aioli

  • ⅓ cup mayonnaise
  • 1 ½ cups fresh basil leaves
  • 2-3 cloves garlic
  • 1 tablespoon lemon juice or more to taste

Instructions

Basil Aioli

  • Add all ingredients into a mason jar and blend with a stick blender or add to blender and blend well.

To make the sandwich

  • Spread some mayo on each side of the bread and toast in a pan. You can use butter instead. Toast to your liking. Set aside until ready to assemble.
  • Cook bacon, I prefer cooking it in the air fryer for 13-15 minutes at 400 degrees F. Or pan-fry until desired crispiness. Add to a paper towel to drain.
  • Slice tomatoes, add to a paper towel, and sprinkle with salt to drain the juices. Pat dry when ready to assemble. Cut the avocado thinly and salt, prep the lettuce and basil.

Assemble the sandwich

  • Add basil aioli to the bread on both sides. Add lettuce, tomatoes, avocado, bacon, and basil. Close with the other slice of bread. Add 1 toothpick on either side of the sandwich to help keep it together when you cut it. Cut in half or enjoy as a whole.

Notes

  • Make bacon ahead: Cook bacon ahead of time and keep it in the fridge until needed.
  • Use regular mayo instead of basil aioli or add a little kick with some chipotle peppers.
  • Basil aioli can be made ahead of time too and will last for up to a week in the fridge.
Course: Lunch, Main Course, Sandwich
Cuisine: American
Keyword: 10 minute meal, aioli, bacon, easy, easy meal, lunch, sandwich

Nutrition

Calories: 1215kcal | Carbohydrates: 78g | Protein: 31g | Fat: 88g | Saturated Fat: 21g | Polyunsaturated Fat: 29g | Monounsaturated Fat: 32g | Trans Fat: 0.2g | Cholesterol: 90mg | Sodium: 2074mg | Potassium: 921mg | Fiber: 8g | Sugar: 9g | Vitamin A: 1970IU | Vitamin C: 25mg | Calcium: 133mg | Iron: 7mg

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Recipe Rating




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  1. Shey

    at

    5 stars
    Sincerely the best sandwich I’ve ever had. So delicious and simple to make!

    Reply
  2. Larisa

    at

    5 stars
    If you like bacon this one is for you! The BLTA was simple to make, fast and delicious. A new summer favorite.

    Reply

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Welcome, glad you’re here!

Hi, I’m Lena Gladstone, the recipe developer and food photographer behind Lena’s Kitchen. Here you will find approachable food recipes to share with the whole family. Keto friendly, weeknight dinners all made with fresh ingredients. Click here to learn more!

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