Cheesy Taco Lasagna

Name: Cheesy Taco Lasagna
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: Mexican
Ingredients: 1 medium yellow onion; 1 medium red bell pepper; 2 cloves garlic; 1 (about 15-ounce) can black beans; 2 tablespoons olive oil, divided; 1 pound lean ground beef; 1 tablespoon chili powder; 2 teaspoons ground cumin; 1 teaspoon dried oregano; 1 teaspoon kosher salt; 1/4 teaspoon freshly ground black pepper; 1 (about 16-ounce) jar tomato salsa, divided; 12 (8-inch) corn or flour tortillas, divided; 16 ounces sour cream, divided; 16 ounces shredded Mexican cheese blend (about 4 cups), divided; Shredded romaine lettuce; Chopped tomato; Fresh cilantro leaves; Sliced avocado; Pickled jalapeño slices