Preheat oven to 350°F
Beat eggs, add Italian seasoning, salt and pepper in medium bowl and mix until blended
Add tomato, bell pepper and onion; mix well. Spoon evenly into greased muffin cups, about 1/4 cup each. Add cheese and again spoon 1/4 cup each
Bake at 350°F until the muffins are set, about 20 to 22 minutes. Cool the muffins for 5 minutes. Remove them from the tray and serve