Frittatas are flat Italian omelets made with variety of fillings. Serve warm or at room temperature.
Heat oil in large ovenproof nonstick skillet on medium heat. Add onion, bell pepper and potatoes; cook and stir 4 minutes. Reduce heat to medium-low.
Beat eggs, milk, basil, salt and pepper in medium bowl. Stir in sausage. Pour into skillet. Cook without stirring 5 minutes or until eggs are set on bottom. Sprinkle with cheese.
Broil 4 to 5 minutes until eggs are set and cheese is lightly browned. Sprinkle with additional basil, if desired.
Wrap the skillet handle in foil if your skillet is not ovenproof.