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Chicken Avocado Melt Sandwich – A Deliciously Creamy & Cheesy Lunch Idea!

Looking to upgrade your lunch game? This Chicken Avocado Melt Sandwich is your new go-to. It’s hearty, gooey, full of texture, and absolutely bursting with flavor. Imagine juicy, seasoned chicken breast layered with creamy avocado, melted cheese, fresh tomato, and red onion—all sandwiched between two slices of golden grilled bread. What makes it extra special? The Dijon-mayo combo that adds a tangy kick, and of course, the buttery grilled crust that crisps up to perfection. Whether you’re craving a fulfilling lunch, an easy weeknight dinner, or a next-level sandwich for meal prep, this recipe delivers all the melty magic you could want.
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Servings: 2 large sandwiches

Ingredients
  

🍗 Protein
  • 2 boneless skinless chicken breasts (grilled or pan-seared)
🥑 Vegetables
  • 1 ripe avocado
  • 1 small red onion thinly sliced
  • 1 ripe tomato sliced
🧂 Condiments & Seasoning
  • 1 tbsp Dijon mustard
  • 2 tbsp mayonnaise
  • Salt and black pepper to taste
🍞 Bread & Oil
  • 4 slices of bread sourdough, ciabatta, or artisan loaf recommended
  • 1 tbsp olive oil for cooking chicken
  • Butter or olive oil for grilling the sandwich
🧀 Dairy
  • 4 slices of cheese mozzarella, cheddar, Swiss, or provolone

Equipment

  • Skillet or griddle
  • Cutting board and knife
  • Mixing bowl
  • Spatula
  • Grill press or pan (optional for pressing sandwich)
  • Measuring spoons
  • Small bowl for sauce

Method
 

Step 1. Prepare the Chicken
  1. Slice chicken breasts horizontally into thinner cutlets or pound them to an even thickness.
  2. Season both sides with salt and pepper.
  3. Heat 1 tbsp olive oil in a skillet over medium heat.
  4. Cook the chicken for 4–5 minutes per side, or until golden and cooked through (internal temp should reach 165°F / 74°C).
  5. Remove and let rest for 5 minutes before slicing.
Step 2. Make the Sauce
  1. In a small bowl, mix together:
  2. 2 tbsp mayo
  3. 1 tbsp Dijon mustard
  4. Adjust to taste with salt or a dash of lemon juice if desired.
Step 3. Prep the Veggies & Avocado
  1. Slice the tomato and red onion thinly.
  2. Mash the ripe avocado in a bowl with a pinch of salt and pepper for spreadability. (Alternatively, slice thin for chunkier texture.)
Step 4. Assemble the Sandwiches
  1. Lay out the bread slices.
  2. Spread each slice with the Dijon-mayo mixture.
  3. On two slices, layer:
  4. Sliced chicken
  5. Spoonful of mashed avocado or avocado slices
  6. Tomato slices
  7. Red onion rings
  8. 2 slices of cheese (one on top and bottom for max melt!)
  9. Top with remaining bread slices, sauce side down.
Step 5. Grill the Sandwiches
  1. Heat a clean skillet or griddle over medium heat.
  2. Spread butter or drizzle olive oil on the outside of each sandwich.
  3. Grill sandwiches for 3–4 minutes per side, pressing gently with a spatula or grill press, until golden and crispy.
  4. Flip and repeat until cheese is fully melted and sandwich is crisp.
Step 6. Slice & Serve
  1. Let rest for 1 minute.
  2. Slice diagonally and serve hot with chips, salad, or a cup of soup.

Notes

🧊 Storage & Reheating
Fridge: Store assembled sandwiches (uncooked) for up to 1 day wrapped tightly.
Cooked: Store in fridge up to 2 days.
Reheat: Warm in skillet over low heat or air fryer at 350°F for 3–4 minutes. Avoid microwaving—it softens the bread.
🥄 Variations
Spicy Kick: Add sliced jalapeños or a drizzle of hot honey.
Herby Spread: Mix chopped fresh basil or cilantro into the mayo-mustard sauce.
BLT Style: Add crispy bacon for even more flavor and texture.
Wrap It: Make it in a tortilla wrap or flatbread for a handheld version.
Vegan Version: Use grilled tofu or seitan, vegan cheese, and avocado mayo.
Gluten-Free: Swap in GF sandwich bread or lettuce wraps for a low-carb twist.
❓ 10 FAQs
1. What’s the best bread to use?
Thick slices of sourdough, ciabatta, or country white are perfect—they hold up well and crisp beautifully.
2. Can I use leftover chicken?
Absolutely! Rotisserie or pre-cooked chicken works great for a faster version.
3. What cheese melts best for this?
Mozzarella, cheddar, provolone, or Swiss all melt beautifully and pair well with avocado.
4. Can I skip the mayo or mustard?
Yes. Use hummus, pesto, or just avocado if preferred.
5. Is this sandwich good for meal prep?
It can be, especially if you store ingredients separately and assemble just before grilling.
6. Can I bake instead of grill?
Yes—bake at 400°F for 10 minutes, flipping once, or use a panini press.
7. What goes well with this sandwich?
Try a side salad, sweet potato fries, chips, or tomato soup.
8. How can I make it spicier?
Add hot sauce to the sauce mix or use pepper jack cheese.
9. What’s a good dairy-free cheese?
Brands like Violife and Daiya melt well and taste great in sandwiches.
10. Can I add lettuce?
Only add lettuce after grilling to prevent it from wilting.
🏁 Conclusion
This Chicken Avocado Melt Sandwich is everything a great sandwich should be—crispy, creamy, cheesy, juicy, and loaded with flavor. Whether you’re cooking for one or feeding a crowd, it delivers restaurant-quality satisfaction in under 30 minutes.
So next time you need a meal that’s quick, filling, and irresistibly delicious, skip the takeout and make this instead. Serve it up with your favorite sides, a cold drink, and plenty of napkins—this is one melt that gets messy in the best way.