Preheat the air fryer to 400°F for 5 minutes.
Spray the air fryer basket with olive oil and arrange tater tots in a single layer (work in batches if needed).
Cook tater tots for 15-18 minutes, shaking the basket halfway through, until golden and extra crispy.
Transfer cooked tots to an oven-safe serving dish or leave in air fryer-safe pan.
Top the crispy tots with cooked meat, then drizzle generously with warm queso cheese sauce.
Add diced tomatoes and jalapeño slices on top.
Return to air fryer for 2-3 minutes at 350°F just to warm the toppings.
Remove and garnish with dollops of sour cream, green onions, and fresh cilantro before serving immediately.