Preheat oven to 350°F (175°C).
In a large skillet, brown the ground beef over medium heat. Drain off any excess grease.
1 pound ground beef
Stir in the chopped onion and cook until softened, about 5 minutes.
1/2 cup chopped onion
Add the can of chili with beans and the condensed cream of mushroom soup to the skillet. Mix well to combine.
15 ounce chili with beans, 10.75 ounce condensed cream of mushroom soup
Spread the chili mixture evenly in a 9x13 inch baking dish.
Top with the shredded cheddar cheese.
1 cup shredded cheddar cheese
Arrange the frozen tater tots in a single layer over the cheese.
32 ounce frozen tater tots
Bake for 30-40 minutes, or until the tater tots are golden brown and crispy and the cheese is melted and bubbly.
Let cool slightly before serving.
Top with sour cream, chopped green onions, and hot sauce, if desired.
sour cream, chopped green onions, hot sauce
