Eating half a box of cereal is easy. Breakfast is key for me. If I don't eat a big breakfast I'll spend the rest of the day hungry and can never seem to make up for it. If I eat a huge breakfast I feel good all day and can get by on less lunch and dinner. Half a box of cereal is only two bowls usually (and no, I don't get sugary cereal. I usually eat whatever shredded wheat or granola-type cereal is on sale).
Oatmeal is cheap, but I can never seem to get full on it. Same goes for raman noodles. I'd love to find some whole wheat pasta, but it's usually more expensive than regular pasta.
I wish I could find 20 cent/lb turkey around here! I love turkey. I usually go to Meijer because it's right off the bike trail. Sometimes I go to Kroger when they have deals on cereal. Oh yeah, and they always seem to be giving out free samples of something in there.