Spicy Shrimp Tacos with Garlic Cilantro Lime Slaw

Name: Spicy Shrimp Tacos with Garlic Cilantro Lime Slaw
Prep time: 20 min
Cook time: 10 min
Total time: 30 min
Cuisine: Mexican
Ingredients: 1/4 cup oil; 1/2 cup chopped green onions; 1/2 cup cilantro leaves; 2 cloves garlic; 1/2 teaspoon salt; juice of 2 limes; 1/2 cup sour cream or full-fat Greek yogurt; 1/4 cup water (if needed, to thin sauce); 2 teaspoons each chili powder and cumin; 1/2 teaspoon each onion powder and garlic powder; 1/4 teaspoon cayenne pepper (more or less to taste); 1 teaspoon coarse sea salt; 1 lb. shrimp, peeled and deveined, tails removed; 2-3 cups shredded green cabbage; 8 small tortillas (corn or flour); 2 avocados; 1/4 cup Cotija cheese; lime wedges for serving