Boneless, skinless chicken breast plus yellow and green bell peppers sizzle together on a sheet pan while tortillas warm in the same oven. Topped with sour cream, salsa, and ripe avocado, this one-pan dinner is sure to become a regular weeknight fix.
8 flour tortillas (each 6 inches)
3 bell peppers (1 red, 1 green, and 1 yellow), cut into ½-inch strips
1 large white onion, cut into ½-inch rounds
¼ cup extra-virgin olive oil
Kosher salt
1 tablespoon chili powder
1 pound boneless, skinless chicken breasts, pounded ½ inch thick
1 lime, halved, plus wedges for serving
Sliced avocado, sour cream, salsa, and fresh cilantro leaves
Preheat broiler, with racks in upper and lower thirds. Stack tortillas and wrap in parchment-lined foil; place on lower rack. On a rimmed baking sheet, toss vegetables with 2 tablespoons oil; season with salt and sprinkle with 1 1/2 teaspoons chili powder. Arrange in a single layer and broil on upper rack, flipping once, until just charred and softened, about 8 minutes.
Drizzle chicken with remaining 2 tablespoons oil, season with salt, and sprinkle with remaining 1 1/2 teaspoons chili powder. Push vegetables to edges of sheet; arrange chicken in a single layer in center. Broil, flipping once, until chicken is cooked through and vegetables are tender, about 8 minutes. Remove tortillas and sheet from oven; let stand 5 minutes. Transfer chicken to a cutting board; slice into strips. Return to sheet; squeeze lime halves over vegetables and chicken. Serve with tortillas and accompaniments.