Heat olive oil in a large skillet over medium heat. Sauté onions and garlic until soft and fragrant, then add ground beef, breaking it apart and cooking until browned.
Stir in chili powder, cumin, smoked paprika, garlic powder, onion powder, cayenne, salt, and black pepper. Add tomato sauce and beef broth, reduce heat, and simmer 10–15 minutes until thick and aromatic.
Preheat taco shells according to the package. Fill each shell with seasoned beef, shredded lettuce, diced tomatoes, and cheese. Top with sour cream or Baja sauce.
Melt butter in a skillet over medium heat. Place a tortilla in the skillet, sprinkle with cheese, and add beef or chicken if desired.
Fold in half and cook until golden on both sides, then slice into wedges. Serve with Baja sauce or nacho cheese.
Warm tortillas slightly, spread a thin layer of refried beans down the center, and add beef, rice, cheese, and sour cream. Fold sides inward and roll tightly. Heat in a skillet or oven until warm and melty.
Preheat oven to 425°F (220°C). Soak cut fries in cold water 30 minutes, then drain and pat dry. Toss with olive oil, paprika, garlic powder, chili powder, and salt. Spread on a baking sheet and bake 25–30 minutes, flipping halfway, until crispy and golden.
Melt butter in a saucepan, whisk in flour until smooth. Slowly add milk, whisking until thickened, then stir in cheddar cheese, chili powder, and cayenne until creamy.
Combine sour cream, mayo, jalapeño, lime juice, cumin, garlic powder, paprika, and salt. Mix until smooth and chill before serving.