As much as I'd like to claim this one, I can't. It came from recipezaar.

http://www.recipezaar.com/143405

South Beach Phase I "Pizzas"

Ingredients
1 steak tomato (I didn't have a beefsteak tomato, so I used 2 on the vine tomatoes)
6 tablespoons prepared pesto sauce (got mine from Trader Joe's)
6 slices lowfat mozzarella cheese


Directions
1. Preheat the oven to Broil.
2. Slice the tomato to 6 even slices
3. Top each slice with a tbsp of pesto and a slice of cheese.
4. broil until cheese is melted and eat away.

*To make it easier to clean, I sprayed the pan with Pam before placing the tomatoes and cheese in the baking dish.