step 01Preheat oven to 400°. In small microwave-safe bowl, cover sweet potatoes with damp paper towel; cook in microwave oven on high 4 minutes or until easily pierced with a fork.
step 02In medium oven-safe skillet, cook chorizo over medium-high heat 5 minutes or until browned, breaking up chorizo with side of spoon. Add onion and sweet potato; cook 2 minutes or until onion is soft, stirring occasionally. Add baby kale; cook 30 seconds or just until wilted, stirring constantly.
step 03In large bowl, whisk eggs; whisk in sour cream, salt and pepper. Stir egg mixture into potato mixture; sprinkle with cheese. Transfer skillet to oven; bake 20 minutes or until internal temperature of frittata reaches 160°.
step 04Cut frittata into 4 wedges; serve with sliced apple and baby greens.
