
This chicken avocado melt sandwich transforms ordinary ingredients into a cafe-quality lunch that's become my go-to when I want something satisfying yet simple. The combination of tender chicken, creamy avocado, and melted cheese creates a sandwich that feels indulgent while still being homemade.
I first made this sandwich when trying to recreate my favorite cafe lunch at home during lockdown. Now it's become our Saturday tradition, with my husband requesting it almost weekly.
Ingredients
- Boneless skinless chicken breasts provides lean protein and forms the hearty base of the sandwich
- Salt and pepper the essential seasonings that enhance the chicken's natural flavor
- Olive oil helps achieve that perfect golden crust on the chicken
- Avocado adds creaminess and healthy fats look for ones that yield slightly to gentle pressure
- Your favorite cheese creates that irresistible melt factor choose a good melting variety like Swiss or provolone
- Bread sourdough or ciabatta offer the best texture and flavor to hold up to the fillings
- Mayonnaise creates a moisture barrier that prevents soggy bread while adding richness
- Dijon mustard provides a tangy kick that cuts through the richness of the other ingredients
- Red onion adds a pleasant bite and color contrast choose ones with firm tight skin
- Tomato contributes juiciness and freshness select ripe but firm varieties
- Butter for grilling creates that perfect golden exterior that makes this sandwich special
Step-by-Step Instructions
- Season and Cook the Chicken
- Season chicken breasts generously with salt and pepper on both sides. Heat olive oil in a skillet over medium high heat until it shimmers but doesn't smoke. Place chicken in the pan and cook undisturbed for 6 to 7 minutes to develop a golden crust. Flip and cook for another 6 to 7 minutes until the internal temperature reaches 165°F. Let the chicken rest for at least 5 minutes before slicing thinly against the grain for maximum tenderness.
- Prep the Avocado and Cheese
- Halve the avocado, remove the pit, and slice into thin sections while still in the skin. Scoop out with a spoon to preserve the perfect slices. Have your cheese ready by removing it from refrigeration about 10 minutes before assembly so it melts more evenly during cooking.
- Prepare the Bread
- Mix mayonnaise and Dijon mustard in a small bowl until well combined. This creates a flavorful spread that also protects the bread from getting soggy. Spread this mixture generously on one side of each bread slice, making sure to reach all the way to the edges.
- Assemble the Sandwiches
- On two slices of bread with the spread facing up, arrange sliced chicken in an even layer. Top with avocado slices, ensuring they're distributed evenly. Add cheese slices, slightly overlapping to ensure melty coverage. Layer on the red onion and tomato slices. Cap with the remaining bread slices, spread side down, creating a sealed sandwich.
- Grill to Perfection
- Heat butter or olive oil in a large skillet over medium heat until bubbling but not smoking. Place sandwiches carefully into the pan, leaving space between them. Press gently with a spatula to ensure even contact with the pan. Cook for 3 to 4 minutes until deeply golden, then flip with care. Cook the second side for another 3 to 4 minutes, pressing occasionally, until the cheese is completely melted and the exterior is crispy and golden.
- Serve Immediately
- Remove sandwiches from the skillet and transfer to a cutting board. Let them rest for just 1 minute to allow the fillings to set slightly. Slice diagonally with a sharp knife for the most appealing presentation. Serve while still warm, when the cheese is at its perfect melting point.

I discovered the magic of adding Dijon to the mayo spread during a cooking experiment gone right. The slight tang it adds cuts through the richness of the avocado and cheese, creating that perfect flavor balance that keeps my family requesting this sandwich again and again.
Make-Ahead Options
This sandwich works beautifully for meal prep if you keep the components separate. Cook the chicken ahead of time and store it in the refrigerator for up to three days. When ready to assemble, simply warm the chicken slightly before building your sandwich. This approach saves significant time on busy weekdays while still delivering that fresh-made taste.
Creative Variations
Transform this basic recipe by exploring different flavor profiles. Add bacon for a smoky element, use pesto instead of Dijon for an Italian twist, or incorporate roasted red peppers for sweetness. For a spicy version, mix sriracha into the mayo spread or add sliced jalapeños. Each variation keeps the sandwich exciting even when you make it regularly.
Serving Suggestions
Pair this sandwich with a simple side to create a complete meal. A light mixed greens salad with vinaigrette complements the richness of the sandwich perfectly. For heartier appetites, crispy sweet potato fries or a cup of tomato soup makes for classic comfort food combinations. During summer, a chilled cucumber salad provides refreshing contrast.
Recipe FAQs
- → What type of cheese works best for this sandwich?
Swiss, cheddar, or provolone are all excellent choices as they melt well. Swiss offers a nutty flavor that complements the chicken, cheddar provides a sharp taste and beautiful melt, while provolone offers a mild, creamy texture. Choose based on your preference or what you have available.
- → Can I prepare the chicken in advance?
Yes! You can cook the chicken breasts up to two days ahead and store them in the refrigerator. This makes assembly much quicker when you're ready to make the sandwiches. Just slice the chicken when needed and proceed with the remaining steps.
- → How do I prevent the avocado from browning?
Only slice the avocado right before assembling the sandwich. If you need to prepare it slightly in advance, sprinkle the slices with a little lemon juice to help prevent oxidation and browning. The acid in the lemon juice slows down the browning process.
- → What's the best bread to use for this sandwich?
Sourdough and ciabatta work exceptionally well as they have good structure to hold the fillings and create a nice crispy exterior when grilled. Other excellent options include French bread, whole grain bread for added nutrition, or a rustic country loaf.
- → Can I make this sandwich without a grill or panini press?
Absolutely! A regular skillet works perfectly for this sandwich. The key is applying gentle pressure with a spatula while cooking to help the sandwich compress slightly, allowing the cheese to melt and the ingredients to bond together. If you want even weight distribution, place a small heavy pot on top of the sandwich while cooking.
- → How can I make this sandwich healthier?
Use whole grain bread for added fiber, opt for light mayonnaise or substitute with mashed avocado as the spread, use reduced-fat cheese, and add extra vegetables like spinach or arugula. You can also grill the sandwich with minimal oil using a non-stick pan or cooking spray instead of butter.