Melt butter in a large skillet (or spray with nonstick spray).

Add vegetables and ham to skillet and saute for a couple of minutes until the veggies are tender, but not browned.

Meanwhile, combine milk, eggs, salt, and pepper in a bowl and beat.

Pour mixture over veggies and ham in skillet.

When the egg starts to set, stir to make sure all egg is cooked.

Top with cheese only when egg is fully cooked.

When cheese starts to melt, remove from heat; serve.