11. Season chicken breasts with taco seasoning, salt, and pepper.
22. Heat olive oil in large skillet over medium-high heat. Sear chicken breasts until golden brown and internal temperature reaches 165°F, about 6-7 minutes per side.
33. Let chicken rest 5 minutes, then slice into thin strips.
44. Arrange Doritos in single layer on large serving platter, creating slight overlap.
55. Sprinkle shredded cheese evenly across chips.
66. Layer sliced chicken over cheese.
77. Top with diced red onions, jalapeños, and drizzle with salsa.