Taco Meatball Skillet

Name: Taco Meatball Skillet
Ingredients: Olive oil; 1/3 cup (45 grams) fine breadcrumbs; 3/4 cup (180 milliliters) light flavored beer; 1 red onion, finely diced; Kosher salt and freshly ground black pepper; 3 garlic cloves, minced; 2 tablespoons chili powder; 1 tablespoon ground cumin; 1 teaspoon dried oregano; 1/2 teaspoon crushed red pepper flakes; 1 large egg; 1 pound (450 to 500 grams) lean ground beef; 1/2 cup plus 2 1/2 tablespoons (156 milliliters) canned tomato paste; 15 ounces (about 430 milliliters) salsa; Toppings such as sour cream, grated Cheddar, pickled jalapeños, chopped tomatoes, sliced green onion, corn chips and cilantro; Flour tortillas or prepared rice, optional