If you love spinach, you'll love this tart. This recipe doesn't call for a crust, but I have made it using a store bought crust and it worked well. The fat and calories are obviously less if you don't use a pie crust. For a little extra "something", when the tart is finished, sprinkle a little shredded Mozzarella cheese or shredded Parmesan over top and put it back in the oven for 5 minutes to melt the cheese over the top. When it's done, then arrange your tomato slices on top of the cheese and serve.
Pour into a casserole dish or tart pan coated with vegetable spray. (If you want a crust, line a pie pan with a store bought crust and pour mixture into the unbaked crust. If using a pie crust, don't spray pan).
Bake, uncovered, for 45 minutes.
Remove from oven.
Slice tomato, and arrange on top of tart and serve.