01 - Combine lime juice, soy sauce, olive oil, Worcestershire sauce, cumin, chili powder, garlic powder, smoked paprika, salt, and black pepper in a large bowl or zip-top bag. Add chicken breasts and coat thoroughly. Cover and refrigerate for at least 2 hours, up to 8 hours for maximum flavor penetration.
02 - Whisk together ranch dressing, salsa, mayonnaise, lime juice, and chili powder in a small bowl until smooth and well combined. Refrigerate until serving time.
03 - Preheat grill or grill pan to medium-high heat (approximately 375°F to 400°F). Remove chicken from marinade, allowing excess to drip off. Grill for 6 to 8 minutes per side, flipping once, until internal temperature reaches 165°F.
04 - Transfer grilled chicken breasts to a baking sheet. Spread 2 to 3 tablespoons of Mexi-Ranch sauce over each breast. Distribute shredded Mexican-blend cheese evenly on top of each piece.
05 - Place baking sheet under oven broiler for 1 to 2 minutes, watching closely to prevent burning, until cheese is fully melted and bubbly.
06 - Arrange chicken breasts on serving plates. Top each with a generous portion of tortilla strips and pico de gallo. Serve immediately while hot.