Combine tuna, shallot, mayonnaise, lemon juice, parsley, salt, hot sauce and pepper in a medium bowl. Spread 1/4 cup of the tuna mixture on each slice of toast; top with tomato slices and 2 tablespoons cheese. Place sandwiches on a baking sheet and broil until the cheese is bubbling and golden brown, 3 to 5 minutes.
Tip: Look for sustainable seafood, such as U.S.-caught chunk light tuna, preferably certified by the Marine Stewardship Council.
Cut Down on Dishes: A rimmed baking sheet is great for everything from roasting to catching accidental drips and spills. For effortless cleanup and to keep your baking sheets in tip-top shape, line them with a layer of foil before each use.
1 starch, 1/2 vegetable, 3 lean meat, 1/2 high-fat meat