Festus-Style Grilled Chicken Sandwich with Spicy Mustard Aioli

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A grilled chicken sandwich inspired by the Festus region featuring smoky charred chicken and a zesty mustard aioli for a regional twist. This American-inspired chicken recipe, ready in about 25 minutes, pairs boneless skinless chicken breasts, olive oil, smoked paprika for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 calories and feeds 2, 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.

Prep: 10 min Cook: 15 min Serves 2 American cuisine 450 cal/serving
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Ingredients

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Instructions

  1. Step 1: Combine 2 tbsp olive oil, 1 tsp smoked paprika, 1/2 tsp garlic powder, 3/4 tsp salt, and 1/2 tsp black pepper in a small bowl. Rub evenly over 2 boneless skinless chicken breasts.
  2. Step 2: Preheat a grill or grill pan to medium-high heat (about 400°F). Grill chicken for 5-6 minutes per side until cooked through and internal temperature reaches 165°F, with visible char marks.
  3. Step 3: In a small bowl, mix 3 tbsp mayonnaise, 1 tbsp Dijon mustard, and 1 tsp hot sauce to make spicy mustard aioli.
  4. Step 4: To assemble sandwiches, spread 1.5 tbsp aioli on each toasted burger bun bottom. Top each with 1 grilled chicken breast, 1/2 cup shredded lettuce, and 2 tomato slices. Cover with top buns and serve immediately.

Frequently asked questions

How long does Festus-Style Grilled Chicken Sandwich with Spicy Mustard Aioli take to make?

Total time is about 25 minutes (10 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Festus-Style Grilled Chicken Sandwich with Spicy Mustard Aioli?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep olive oil from drying out.

Can I substitute ingredients in Festus-Style Grilled Chicken Sandwich with Spicy Mustard Aioli?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Festus-Style Grilled Chicken Sandwich with Spicy Mustard Aioli for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Festus-Style Grilled Chicken Sandwich with Spicy Mustard Aioli?

American chicken like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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