Zucchini Frittata - Ohio Eggs

Ingredients

• 12 eggs, whisked just until the egg yolks and whites are blended
• 3 tbsps. whole milk {or cream}
• 2 tbsps. olive oil
• 1/4 cup sweet onion, diced
• 1/2 cup red bell pepper, seeds removed, diced
• 2 small zucchinis, thinly sliced
• 1 cup sharp cheddar cheese, shredded, divided
• 1/2 cup of mozzarella cheese, shredded, divided
• 1/4 cup fresh basil, chopped
• 1 tsp. oregano
• 1/4 tsp. crushed red pepper flakes, optional.
• 1/2 teaspoon salt
• 1/8 teaspoon black pepper