Mexican Tater Tot Casserole Recipe

Name: Mexican Tater Tot Casserole Recipe
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: American, Mexican, Latin American
Ingredients: 1 lb. 85/15 ground beef; 1 onion (diced ( about ¼ cup)); 1 packet taco seasoning mix (1 oz.); 1 can green chiles (4 oz.); 1 can black beans (15.5 oz. rinsed and drained); 1 bag frozen corn (14.4 oz.); 1 can red enchilada sauce (10 oz.); 3 cups shredded cheddar & Monterey jack cheese (off the block, divided); 4 cups frozen tater tots; Cilantro (optional garnish); Sour cream (optional)