This was dinner tonight, and it was delicious!
I used a whole wheat pita, spread it with about a tablespoon of prepared pesto (I buy mine in the pasta sauce aisle), arranged halved grape tomatoes on top, and sprinkled a generous amount of crumbled goat cheese over everything. Bake at 350 for about 10 minutes (OR broil for roughly 3 minutes) or until the cheese is melty and the edges of the pita are toasted.
If you don't have pitas, you can use flat bread, pizza crust, or even a tortilla. I'd also like to try it with artichoke hearts and sautéed mushrooms.