Make the sauce: combine all ingredients for the taco sauce. Set aside.
Make the meatballs: combine all ingredients for the meatballs in a medium mixing bowl, being careful not to over mix them. Using a cookie scoop or tablespoon, form approximately 24 meatballs.
Spread 1/2 cup of sauce in an 8x8 baking dish. Place the meatballs in the dish, then cover with remaining sauce.
Top the meatball casserole with cheese and bake, uncovered, for 45-50 minutes or until meatballs reach an internal temperature of 165°F. If cheese browns too quickly, cover casserole for the rest of baking.
Top taco meatball casserole with taco toppings like lettuce, tomatoes, jalapenos, red onions, sour cream cilantro, and salsa. Serve over pasta or on its own.
Notes
Make sure to use extra lean ground beef.If desired, sear meatballs before adding to casserole.
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