Spinach frittata

Ingredients

• 1 teaspoon olive oil
• 1 garlic clove, minced
• 3 cups baby spinach leaves
• 3 whole eggs, plus 4 egg whites
• 1/4 teaspoon freshly ground black pepper
• 1/2 yellow onion, chopped (about 1/2 cup)
• 1/4 cup minced red bell pepper
• 2 waxy red or white potatoes, about 3/4 pound total weight, peeled and shredded
• 2 tablespoons chopped fresh basil
• 1/4 cup shredded part-skim mozzarella or provolone cheese