For a really good snack I like peanut butter and jam on unsalted crackers with a big glass of milk. Like eating cookies, but without all the stuff they put in cookies.
Also, I like to eat oatmeal for breakfast. It can get pretty boring eating the same thing all the time. But, with oatmeal I can change it everyday: raisins, bananas, various cold cereals mixed in with it, various jams and jellies, chocolate milk, etc. Each addition changes the flavor of the oatmeal enough to make it delicious every day.
Not sure if you'd like this but, as an ingredient to my homemade chili I use a can of tomato soup, undiluted, along with all the other usual ingredients. Makes for a sweeter and more tomato flavor.