01 - Preheat your oven to 375°F. Using a 2.5-inch round cutter, carefully cut two mini circles from each tortilla, yielding 24 rounds. Lightly coat both sides of each tortilla round with olive oil cooking spray, then press them into the cups of a mini muffin tin to form small taco shells.
02 - Bake the prepared tortilla shells for 8 to 10 minutes, or until they are golden brown and crisp. Remove from the oven and allow them to cool completely.
03 - While the shells bake, heat a skillet over medium heat. Add the ground beef and cook for 3 to 4 minutes, breaking it apart with a spoon. Introduce the finely chopped onion and minced garlic, sautéing for an additional 2 to 3 minutes until softened.
04 - Stir in the taco seasoning, smoked paprika, ground cumin, salt, and black pepper. Incorporate the tomato paste and water, then continue to cook and stir until the mixture thickens, approximately 5 minutes. Remove the skillet from the heat.
05 - Once the taco shells are cooled, fill each with a spoonful of the savory beef mixture. Generously top with shredded cheese, shredded lettuce, diced tomatoes, a small dollop of sour cream, and a dollop of guacamole. Garnish with fresh cilantro leaves.
06 - Serve the mini tacos immediately with fresh lime wedges on the side for an added zest.