Spicy Shrimp Tacos with Garlic Cilantro Lime Slaw

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 fullfat 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