I never thought of peanut butter as a healthy food, but I only like Jiff creamy and lots of it.
My favorite healthy food(s) are:
strawberries and blueberries
low fat yogurt
Light vanilla soymilk
Kashi Go Lean cereal
onions
green peppers
broccoli
zucchini
sweet-potato
whole wheat, low-carb tortillas
laughing cow cheese
low-fat Triscuits
boneless chicken breast
balsamic vinegar
and of course the very healthy, dark chocolate
Just to name a few