Rinse your quinoa thoroughly under cold water to get rid of any bitterness. Add it to a saucepan with water or broth, bring it to a boil, then reduce the heat and cover. Let it simmer for about 15 minutes until the liquid is fully absorbed and the quinoa looks fluffy.
While the quinoa cooks, toss the shrimp in a bowl with smoked paprika, cumin, chili powder, cayenne, minced garlic, salt, and pepper. Make sure every piece gets an even coating so the flavor doesn't end up patchy. Let it sit for a few minutes while you prep your toppings.
Heat olive oil in a large skillet over medium-high heat until it shimmers. Add the shrimp in a single layer and cook for about 2 minutes per side, just until they turn pink and slightly charred. Avoid overcrowding the pan, or the shrimp will steam instead of sear.
While the shrimp cooks, dice your cucumber, avocado, and halve the cherry tomatoes. If you're using fresh corn, you can quickly char it in the same skillet for extra flavor. Keep everything in separate small bowls so assembly is quick and easy.
Start with a base of fluffy quinoa in each bowl, then layer on the salad greens. Arrange the shrimp, tomatoes, corn, cucumber, and avocado around the bowl so every bite gets a bit of everything. A little visual variety goes a long way here.
Drizzle fresh lime juice over the top and sprinkle with toasted pumpkin seeds for crunch. Taste and add a pinch more salt or cayenne if you want extra heat. Serve immediately while the shrimp is still warm.