Beef and Bean Taco Casserole

Name: Beef and Bean Taco Casserole
Ingredients: 2 tablespoons vegetable oil, plus more for greasing dish; 1 1/2 pounds ground beef; 3 tablespoons chili powder; 1 1/2 teaspoons ground cumin; 1 teaspoon dried oregano; Kosher salt and freshly ground black pepper; 1 medium onion, finely diced; 4 cloves garlic, minced; One 15-ounce can pinto beans, strained and rinsed; 2 cups jarred tomato salsa, plus more for serving; 6 cups yellow corn tortilla chips (about 5 ounces), plus more for serving; 3 cups shredded Cheddar and Monterey jack blend; 1 cup sour cream, stirred well for easy dolloping; 1 cup shredded iceberg lettuce; 2 plum tomatoes, diced; 1/2 avocado, diced; 1/4 cup pickled jalapenos, chopped