Chili Pie Burritos

Name: Chili Pie Burritos
Ingredients: 2 tablespoons olive oil; 2 pounds ground beef; 3 cloves garlic, minced; 2 tablespoons tomato paste; Two 14-ounce cans kidney beans, drained and rinsed; One 14-ounce can tomato sauce; One 10-ounce can diced tomatoes and green chiles; 1/4 cup chili powder; Kosher salt and freshly ground black pepper; 8 large flour tortillas, lightly warmed; 2 cups grated Cheddar; 1 yellow onion, diced small; 2 cups corn chips; 1/2 cup sour cream; Olive oil, for toasting