Brown ground chuck in a skillet over medium heat.

Drain any excess fat from the browned beef.

Add Ro-Tel tomatoes and peppers, chopped onion, mushroom soup, and Ranch Style beans to the skillet with the beef.

Stir all ingredients together thoroughly.

Reduce heat to low and let the mixture simmer for 15 minutes, stirring occasionally.

Grate cheese while the mixture simmers.

Preheat oven to 350°F (175°C).

In a baking dish, create a layer of tortilla chips on the bottom.

Pour half of the casserole mixture over the tortilla chips.

Sprinkle half of the grated cheese over the casserole mixture.

Add another layer of tortilla chips.

Pour the remaining casserole mixture over the second layer of chips.

Top with the remaining grated cheese.

Bake in the preheated oven for 30 minutes, or until the cheese is melted and bubbly.