If I'm being good and totally avoiding no-no food, I have a difficult time even hitting 1000 calories in a day.
Eating 2 - 3 scrambled eggs for breakfast, maybe a quest bar around lunch time (my 17 month old makes cooking when I'm home alone difficult), and having fish, chicken, turkey, or pork as the protien for dinner with broccoli or spinach or greenbeans...maybe some halo top ice cream for dessert. All of that is more than enough to keep me full all day.
I think what makes it hard hitting daily calories on that is the lack of fat. Poultry, seafood, and pork are all pretty lean.