Preheat oven to 350°F.
Add the ground beef and onion to a skillet set over medium heat. Brown the ground beef. Then, drain the excess liquid.
1 pound 85% lean ground beef, ½ onion
Stir in the taco seasoning and tomato sauce.
2 tablespoons taco seasoning, 8 ounces tomato sauce
Unroll the crescent roll dough and press the pieces into the bottom of a pie pan and up the sides.
8 ounces refrigerated crescent rolls
Layer half of the tortilla chips on the dough. Spread the ground beef over the chips.
1¼ cups crushed tortilla chips
Bake for 10 minutes.
Spread the sour cream over the ground beef. Then top with the cheese and remaining tortilla chips.
1 cup sour cream, 1½ cups freshly shredded cheddar cheese
Bake for another 12-15 minutes until the crust is golden brown.
Top with tomatoes, green onion, lettuce, and cilantro
Optional Toppings: