V1 of my food mod, I will add more stuff. This is just the first version that I find okay to upload without being completely ashamed of it :)
Currently it adds only two items, both are in their own "JFood" group in the crafting part of your inventory:

sushi
burger bun

Infos about the items:

burger bun
    stack_size: 200
    cooldown: 600
    boosts: movement
    boost: 3

    recipe:
    makes 1 burger bun
    takes 5s
    ingredients:
        wood  x 4
        sushi x 10

sushi
    stack_size: 50
    cooldown: 120
    boosts: movement
    boost: 1

    recipe:
    makes 5 sushi
    takes 1s
    ingredients:
        raw-fish x 10

The boost is calculated by the following formula:

movement-speed = movement-speed + boost

The length of the boost depends on the cooldown, you can only activate one boost of the same type at once.
So the burger bun should boost you for 10s if your game runs at normal 60fps.