Zucchini Onion Frittata - cooking recipe

Ingredients

3 tablespoons butter
2 tablespoons vegetable oil
2 medium zucchini, thinly sliced
1 medium onion, cut in half and sliced
1/2 cup parmesan cheese, grated and divided
8 large eggs
1/4 cup milk
1 teaspoon salt
1/2 teaspoon pepper
1/4 cup fresh basil, chopped
Garnish
chopped seeded plum tomato

Preparation

Preheat the oven to 350 degrees Farenheit.
Melt butter with oil in a 12-inch ovenproof skillet over medium-high heat.
Add zucchini and onion, and saute 12 to 14 minutes or until onion is tender.
Remove from heat and stir in 1/4 cup grated Parmesan cheese.
Whisk together eggs with the milk, salt and pepper for least 1 minute, or until well blended, then pour over the vegetable mixture.
Bake for 13 to 15 minutes or until set.
Then, increase the oven temperature to broil, and broil 5 1/2 inches from heat for 1 to 2 minutes or until the edges are lightly browned.
Sprinkle evenly with remaining 1/4 cup grated Parmesan cheese and basil.
Garnish with the tomato if desired.