Cuban style Sweet potatoes plantain and tofu bake

Name: Cuban style Sweet potatoes plantain and tofu bake
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: Latin American, American, Cuban
Ingredients: 2 medium sweet potatoes ((african sweet potatoes)); 1 Ripe plantain; 1 red bell pepper; 1 yellow bell pepper; 3 large kale leaves; 1 packet extra firm tofu; 1 Tbsp cuban island spice mix; 1 tbsp onion powder; 1 tbsp roasted garlic powder; 1/2 tbsp black pepper; 3 Tbsp olive oil; 1/2 tbsp Kosher salt