Pan-Seared Chicken Sandwich with Garlic Aioli and Pickled Red Onions
Juicy pan-seared chicken breast layered with tangy pickled red onions, fresh lettuce, and garlicky aioli on a toasted brioche bun for a flavorful sandwich. This American-inspired sandwich and wrap recipe, ready in about 32 minutes, pairs boneless skinless chicken breast, salt, black pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 520 calories and feeds 1, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 6 oz boneless skinless chicken breast
- 1/2 tsp salt
- 1/4 tsp black pepper
- 1 tbsp olive oil
- 1, split brioche bun
- 1 large leaf leaf lettuce
- 2 tbsp mayonnaise
- 1 tsp minced garlic
- 1/4 medium, thinly sliced red onion
- 2 tbsp white vinegar
- 1 tsp sugar
- 2 tbsp water
The instant-read thermometer we’d check this chicken with → Best Instant-Read Thermometers for 2026: Fast, Accurate Picks Under $100
Affiliate disclosure: AislePrompt may earn a commission on qualifying purchases made through Amazon links, at no additional cost to you. See our policy →
Equipment for this recipe
Tools this recipe's steps call for, with a link to each on Amazon.
Instructions
- Step 1: Combine 2 tbsp white vinegar, 1 tsp sugar, 2 tbsp water, and 1/4 medium thinly sliced red onion in a small bowl. Let sit for at least 15 minutes to pickle.
- Step 2: Meanwhile, season 6 oz boneless skinless chicken breast evenly with 1/2 tsp salt and 1/4 tsp black pepper on both sides.
- Step 3: Heat 1 tbsp olive oil in a skillet over medium-high heat. Add the chicken breast and cook for 5-6 minutes per side until golden brown and cooked through (internal temperature 165°F).
- Step 4: Mix 2 tbsp mayonnaise with 1 tsp minced garlic in a small bowl to make garlic aioli.
- Step 5: Toast the 1 split brioche bun in the skillet for 1-2 minutes until lightly browned.
- Step 6: Spread garlic aioli evenly on both halves of the toasted bun. Layer the cooked chicken breast on the bottom half, top with 1 large leaf lettuce, and then add drained pickled red onions.
- Step 7: Close the sandwich with the top bun half and serve immediately.









