Stuffing

I agree, heavier foods, pastas, sauces, etc. make me feel full and bloated. You might try breakfast foods, eating several pancakes, with syrup etc. will fill you up. Buy the mix in fairly large bags a batch here or there would not be noticed.

Generally the more fat that's in a food the heavier it'll feel in your stomach. The same is also true of protein I guess. And probably fiber as well.