01 -
Heat oven to 400°F. Line a large sheet pan with parchment paper or lightly coat with cooking spray to prevent sticking and ease cleanup.
02 -
Warm olive oil in a large skillet over medium-high heat. Cook diced onion until translucent, about 3 minutes. Add minced garlic, cooking 30 seconds more until fragrant. Add ground beef, breaking it up with a wooden spoon, and cook until browned and no longer pink, approximately 6-7 minutes. Drain excess fat if necessary.
03 -
Sprinkle taco seasoning over browned meat. Add 1/4 cup water, stir thoroughly, and simmer for 2-3 minutes until liquid is mostly absorbed and meat is evenly coated. Remove from heat and set aside.
04 -
Evenly spread tortilla chips in a single slightly overlapping layer across the prepared sheet pan to ensure balanced topping coverage.
05 -
Distribute seasoned meat evenly over chips, followed by black beans, diced green chilies, and corn kernels to create a harmonious flavor balance.
06 -
Cover the toppings uniformly with shredded Mexican-blend cheese, reaching the edges. Scatter halved cherry tomatoes, sliced jalapeños, and black olives on top.
07 -
Place the sheet pan in the preheated oven for 7-10 minutes or until cheese is fully melted and bubbling and chip edges begin to brown. Monitor closely at 7 minutes to avoid burning.
08 -
Remove from oven and immediately garnish with fresh cilantro and sliced green onions. Serve hot accompanied by sour cream, guacamole, and lime wedges.