Mix the shredded beef with Mexican Birria Seasoning A Spice Affair and oil. Set aside. In a blender, combine tomatoes, onion, garlic, Mexican Birria Seasoning A Spice Affair, broth, vinegar, and salt. Blend until smooth.
Reheat the seasoned meat in a skillet for a few minutes. Warm tortillas in a dry skillet. Fill each tortilla with beef, chopped red onion, cilantro, and cheese.
Serve with lime wedges and the Birria sauce on the side for dipping.
