Here are three of my favorite sandwiches. Mayo free, so you won't get poisoned from your picnic.
"TBM" stands for "tomato, basil, mozzarella", and is basically exactly what it sounds like: a slightly exotic vegetarian answer to the BLT.
2 thick carved slices of mozzarella
several leaves of carefully washed basil, or a spoonful of pesto used as spread
Assembly should be self evident. Grills superbly.
Havarti and Tomato on a French Roll
The beauty of this baby is the texture: somehow the Havarti combines with the French roll to create a blissful, smooth compliment to the tomatoes. Possibly my favorite sandwich in the world.
1 crusty French roll
2-4 tomatoes, cut into thin slices
1/4th pound sliced Havarti cheese
Cut the French Roll open and stuff it with cheese and tomatoes until it looks like it's going to explode.
Serve with iced tea, and pickles, if you like them.
Another variation on this theme is Brie and Tomato, which is also good. Brie is quite buttery in taste, so if you're not a fan of butter you should stick with Havarti or cheddar.
Mushroom Cap Burger
1 portobello mushroom, cleaned and skinned
1 tsp olive oil
1-2 garlic cloves
Various Fixin's: brown mustard, soy sauce, black bean paste, chili paste, cheddar cheese, pesto sauce
Fry the mushroom in a skillet until brown and wilted. Make sure you repeatedly press down on the mushroom with the flat of the spatula so that all the water in the mushroom is forced out.
Serve on hamburger bun with your choice of fixin's.* Potato chips are good with this dish.
Can be served either hot or cold.
*Does anyone else think of Niles Crane when they hear the word "fixin's"? Hee.