Sweet Potato Fajitas

Name: Sweet Potato Fajitas
Ingredients: 1 1/2 lbs sweet potatoes, peeled and sliced into thin 1/4 strips; 3 bell pepper, seed removed and sliced into thin strips (use colors of your choice); 1 large white onion, thinly sliced; 4 garlic cloves, minced; 1 tbsp chili powder; 2 tsp cumin; 2 tsp paprika; 1 tsp garlic powder; 1 tsp kosher salt; 1/2 tsp black pepper; 3 tbsp olive oil; 3 tbsp vegetable oil; flour fajita tortillas; shredded cheese, avocado, tomato, sour cream, limes, cilantro for topping