Step 1: Prepare the Tostada Shells
Oven Method:
Preheat oven to 400°F (200°C).
Lightly brush or spray both sides of the tortillas with oil.
Place on a baking sheet and bake for 5–7 minutes per side until golden and crisp.
Frying Method (optional): Heat ¼ inch of oil in a skillet over medium heat. Fry tortillas one at a time for 30–45 seconds per side until crisp. Drain on paper towels.
Step 2: Cook the Pork : Heat olive oil in a large skillet over medium heat. Add onions and cook until soft (about 2–3 minutes). Add garlic and sauté for 30 seconds. Add ground pork and cook, breaking it apart with a spoon, until browned and cooked through. Stir in chili powder, cumin, paprika, oregano, salt, and pepper. Add a little tomato sauce or salsa if the mixture seems dry. Simmer for 2–3 minutes, then remove from heat.
Step 3: Warm the Refried Beans : In a small saucepan, heat olive oil over low-medium heat. Add the refried beans and stir until smooth and warmed through. Add water or broth as needed for a creamy texture.
Step 4: Make the Salsa : In a bowl, combine diced tomatoes, onion, jalapeño, cilantro, lime juice, and salt. Stir well and taste for seasoning.
Step 5: Assemble the Tostadas : Spread a layer of refried beans on each crispy tostada shell. Top with a generous spoonful of seasoned pork. Add a layer of fresh salsa. Garnish with lettuce, avocado, cheese, and a drizzle of crema or sour cream. Finish with a squeeze of fresh lime.