My mom put together this simple non-lettuce salad for me last summer when she was here, helping us get settled. It is so good, easy and nutrious:
Cut up one cucumber. Thinly slice some onion, just a bit for the flavor. Chop half a red pepper. Combine in a bowl. Drizzle with just enough olive oil to coat and squeeze half a lemon over veggies. Add some salt and pepper if you want. Yummy. I also substitute tomato for the red peppers when they're not on sale because those things are expensive.
I also realized recently how changing one part of a meal can spice things up considerably. For example having a regular sandwich at lunch time but using pita bread instead of regular bread is exciting enough to pretend that I'm eating out. I usually buy two loaves of bread at my biweekly shopping trip but for the summer months I think I'll buy one loaf and then a different bread item for sandwiches: pita bread, bagels, croissants. All those are breads that I usually only get when I go out to eat! What kind of bread do you use for sandwiches?