Sausage and Sweet Potato Frittata

Pierce each sweet potato several times with a fork; microwave on Medium-High for 4 minutes or until just fork tender. Cool completely. Cut the sweet potatoes into 1/2-inch (1 cm) cubes; reserve.

Preheat the oven to 350°F (180°C). Heat the oil in a 12-inch (30 cm) oven-proof skillet set over medium heat. Crumble in the sausage meat; add the Craisins, onion, salt, pepper and sage. Cook, stirring often, for 5 minutes or until sausage is browned and onion is golden. Stir in the sweet potato and spinach; cook, stirring often, for 3 minutes or until the spinach is wilted. Spread evenly into a 12-inch (35 cm) baking dish.

Meanwhile, whisk the eggs and egg whites with the milk and mustard. Pour evenly over the vegetable mixture. Sprinkle evenly with cheese. Bake for 30 minutes or until set.

Makes 8 servings.