Preheat oven to 350°.
Grease a large six hole (3/4 cup) muffin pan and line bases with parchment paper.
Place cheeses, basil and chives in muffin cup.
Whisk eggs and cream in a medium bowl; pour into muffin cups.
Top each frittata with three tomato halves.
Bake about 25 minutes or until set. Let stand in pan 5 minutes.
Place lettuce on six appetizer size plates, top with frittata and enjoy!