– 4 Tablespoons olive oil – Zest of 2 lemons – 2 teaspoons smoked paprika – 2 teaspoons ground coriander – 1 teaspoon dried oregano – 1 teaspoon garlic powder – 1 teaspoon onion powder – ½ teaspoon cumin – ½ teaspoon salt – ½ teaspoon black pepper – ½ teaspoons chili flakes – 2 pounds large raw shrimp peeled, and deveined – 2 large zucchini – 1 large red onion – Skewers – wooden or stainless steel Lemon Dill Sauce: – ¼ cup greek yogurt – ¼ cup mayonnaise – 2 Tablespoons chopped fresh dill – 1 Tablespoons lemon juice – 1 Tablespoons dijon mustard – ¼ teaspoon garlic powder – ¼ teaspoon onion powder – Zest from 1 lemon