Heat butter in a pan over medium heat, then add shrimp in a single layer (you may need to do this in 2 batches). Cook without moving the shrimp for 2-3 mins or until slightly opaque.
Add chili powder, crushed red pepper, soy sauce, salt, and pepper.
Cook, stirring frequently, 1-2 minutes, or until the shrimp are opaque and cooked through. Remove from heat.
Mix the sriracha and yogurt in a bowl.
Assemble the tacos by adding shrimp, cabbage, carrots, and sriracha yogurt sauce to tortilla. Garnish with cilantro and a squeeze of lime.
Combine greek yogurt, cilantro, cumin, salt, pepper, green onions, garlic, and jalapeno. Juice limes and add to mixture.
Blend yogurt mixture in a small blender or whisk in a bowl to combine.
Thinly shred cabbage and carrots.
Toss cabbage mixture and yogurt mixture in a bowl to combine.
Preheat oven to 425 degrees.
Wash and chop sweet potatoes into 1 inch cubes.
Toss sweet potatoes in olive oil, salt, and pepper on a baking sheet.
Roast in oven for 30-35 minutes or until tender when pierced with fork.