Heirloom Basil and Mascarpone Tart

I attended and spoke at a cooking class at Whole Foods over the weekend. This was my favorite recipe. It really accents the tomatoes and you can make personal sized tarts using gluten-free muffins or toast.
Ingredients:

3 medium-small heirlooms sliced very thin
2 oz mascarpone chees
1 Tbsp thinly slivered basil (any herb will do as a substitution of flavor)
pinch of fresh ground salt & black pepper
1 tart shell or sub English muffins or any kind of cracker

Directions:

Stir basil into mascarpone & spread at room temperature onto tart shell. Arrange tomatoes on top of cheese (can overlap if very thin); sprinkle with salt and pepper. Cut into wedges and serve.

(Recipe adapted from www.food52.com)