In large nonstick skillet, heat oil over medium heat. Add potatoes, red bell pepper and garlic; cook and stir 8 to 10 minutes or until potatoes are golden brown. Add spinach; cook and stir 1 to 2 minutes or until spinach is wilted.
Meanwhile, in small bowl, beat together eggs, milk, salt, basil and pepper until blended. Stir in cheese; pour into skillet. Cover; reduce heat to medium-low. Cook 6-8 minutes or until top surface of egg is almost set.
Place skillet under broiler. (If skillet handle is not ovenproof, wrap in triple thickness aluminum foil before placing in oven.) Broil 3 to 4 inches from heat 2 to 3 minutes or until egg is set.