breakfast sandwich? processed food.
lasagna? heavy carbs and gluten.
sloppy joe? bread and added sugars.
your issue is not quantity but quality. none of what you just listed is healthy. make better food choices and THEN let your appetite guide you. right now, the foods you are eating are not nutritionally dense, so your body is not satisfied, and therefore driving you to eat more.
slippery slope you are on. correct it while it's still early.