The easiest and low-carb lunch is just your refrigerator and pantry away. I cut the top of a tomato, cut out the seed pulp and stuff it with Tuna or Chicken Salad. There really is no measuring, that's what makes this so great. I like to put my Tomato on top of mixed salad greens and sprinkle with olive oil, balsamic vinegar, salt & pepper. This can also be made with egg salad. All low-carb for when you're feeling "weighed down or sluggish".