I mix olive oil, lime juice, chili powder, smoked paprika, cumin, oregano, minced garlic, red pepper flakes, salt, and pepper in a bowl. Then I toss the shrimp in that marinade and let them sit for about 10 minutes.
While the shrimp marinates, I add avocado, cilantro, jalapeño, garlic, lime juice, yogurt (or dairy-free substitute), and salt into a food processor. I blend until smooth, scraping the sides as needed.
I heat the skillet over medium-high heat. Then I cook the shrimp for about 2–3 minutes per side, until they turn pink and opaque (don’t overcook!).
I briefly warm tortillas on a dry skillet or directly over a flame for a few seconds on each side—just to get them flexible and slightly charred.
I spread a smear of avocado crema on each tortilla, layer a few shrimp, then optionally top with cilantro, lime wedges, sliced onion, or extra crema. Serve immediately while hot.