I'm a US native speaker.
1) Macaroni and cheese. Nowadays the name is usually shortened to "Mac and cheese."
2) Chicken and rice. I think my mom wanted to avoid the ethnic stereotype of "chicken soup and rice." When I was a kid and I got sick, my mom always gave me chicken and rice. The chicken would have been broiled, or fried without any breading. The rice was always Uncle Ben's Converted Rice, and today, this is still the only rice that tastes "right" to me.
3) A peanut butter sandwich.