Only one Suggestion for Food: Goodberries (Druid 1lvl spell) can heal you with 10 berries - each gain u 1hp and u don't need to eat in a day.
And you need to have at least one breakfast in a day or suffer an exhaustion lvls with debuffs
But there is a rule: no food recovers your HP - it's OP and boring and not 5e
U can heal only by short/long resting (with Hit Dice rolls), Potions, Spells, And special class features.
Healler's kit only with Feat works like Healing per short rest. Help Action replaces it - that's boring too
We are playing DnD 5e here, you know