Prep the chicken: In a skillet over medium heat, warm a tablespoon of oil. Add diced onion and cook 2–3 minutes until slightly softened. Stir in garlic, cumin, chili powder, and smoked paprika for 30 seconds.
Sauce the chicken: Add shredded chicken and 1/2 cup salsa verde.
Stir and cook until warmed through and coated, about 3–4 minutes. Season with salt and pepper. Add more salsa if you like it saucier.
Crisp the tortillas (pan-fry method): Heat a thin layer of oil in a wide skillet over medium-high.
Fry tortillas one at a time for 30–60 seconds per side until golden and stiff. Drain on paper towels and salt lightly while hot.
OR bake for a lighter tostada: Brush tortillas lightly with oil, place on sheet pans, and bake at 425°F (220°C) for 6–8 minutes per side until crisp and lightly browned.
Prep toppings: Slice avocado, crumble cheese, thinly shred cabbage, chop cilantro, and slice jalapeño. Have lime wedges ready.
Warm the salsa verde: Heat remaining salsa verde in a small saucepan until just warm.
This boosts flavor and makes the tostadas extra cozy.
Assemble: Spread a little warm salsa on each tostada to help the toppings grip. Pile on chicken, then add cabbage, avocado, cheese, cilantro, and jalapeño.
Finish and serve: Drizzle with crema or sour cream. Add a final spoonful of salsa verde and a generous squeeze of lime.
Serve right away while the shells are crisp.