How to Make It
Preheat oven to 400°F. Heat a large skillet over medium-high. Add ground beef, onion, taco seasoning, and salt; cook, stirring to crumble, until browned, 8 to 10 minutes. Remove from heat. Stir in corn, beans, green chiles, and 1 cup of the cheese.
Spoon mixture into a lightly greased 9- x 13-inch baking dish. Place potato tots in an even layer on top of mixture.
Bake, uncovered, in preheated oven until tots are golden brown and crispy, 35 to 40 minutes. Sprinkle with remaining 1 cup cheese. Bake until cheese is melted, about 5 minutes.
Whisk together sour cream, hot sauce, and lime juice. Drizzle casserole with sour cream mixture; top with avocado, tomato, jalapeño, and cilantro.