Grilled Corn and Basil Frittata

Ingredients

• 1 tablespoon olive oil
• 1 cup chopped red onion (about 1/2 large onion)
• 8 large eggs
• 1 cup shredded manchego cheese
• 1/2 cup 2% milk
• 1/4 teaspoon salt
• 1/4 teaspoon ground red pepper
• 1 cup grilled corn kernels (from approximately 1 and 1/4 ears)
• 1/2 cup basil, chopped