Beefy Nacho Casserole
- 1 (12 oz) bag tortilla chips
- ½ c. butter, melted
- 2 tablespoons grapeseed oil
- 1 medium yellow onion, diced
- 1 large red bell pepper, diced
- 1 large green bell pepper, diced
- 1 pound lean ground beef
- ½ teaspoon garlic salt
- 2 cups shredded cheddar cheese