Sweet Potato Enchilada Soup

Name: Sweet Potato Enchilada Soup
Prep time: 20 min
Total time: 20 min
Cuisine: American, Mexican, Latin American, TexMex
Ingredients: 5 cups hot water; 1 pkg Enchilada Seasoning; 2 small sweet potatoes; 2 green bell peppers; 1 can (14 oz/398 ml) whole tomatoes; 1 can (19 oz/540 ml) unsalted black beans; 4 cups baby spinach; 1/2 cup 2% plain Greek yogurt; 1/2 cup grated cheese; Toppings (optional) crushed tortilla chips, squeeze of fresh lime juice