Preheat oven to 400°F. Toss sweet potato in 2 tsp olive oil and spread on baking sheet. Bake for 20-30 minutes, stirring occasionally, until softened.
In a medium skillet, heat 2 tsp of olive oil over medium heat. Add onion and bell peppers to skillet and cook until softened, about 8-10 minutes. Add sweet potatoes to the skillet along with chili powder, cumin, salt, and pepper. Stir to combine and continue to cook until heated through.
Serve with desired toppings, such as eggs, avocado, queso fresco, etc.