Tempeh And Sweet Potato Hash

Name: Tempeh And Sweet Potato Hash
Ingredients: 2 medium or large sweet potatoes; 2 tablespoons olive oil; 1 cup onion, diced; One 8-ounce package of tempeh, cut into cubes (about 3/4 or 1 inch thick); 1 tablespoon tamari; 1 teaspoon turmeric; 1 teaspoon smoked paprika (or to taste); 2 teaspoons dijon mustard; 1/4 cup vegetable broth, or as needed; 2 cups kale, Swiss chard, or collard greens, chopped and tightly packed; 1 pinch red pepper flakes