Mexican Frittata Recipe | Cookooree

Ingredients

• * 10 large eggs
• * Coarse salt and ground pepper
• * 3 tablespoons olive oil
• * 2 bell peppers (ribs and seeds removed), thinly sliced
• * 1 medium red onion, halved and thinly sliced
• * 1 cup shredded white cheddar (4 ounces)
• * 1 tablespoon red-wine vinegar
• * 1 head Boston lettuce (about 10 ounces), torn into pieces
• * 1/2 cup store-bought salsa, for serving