Eminem is literally a very hungry emcee. Just off the top of my head:
Spaghetti (Lose Yourself)
Hamburger Helper (So Far)
Sloppy Joes (So Far)
Bulk waffles (So Far)
Frozen Yogurt (So Far)
Pizza (As the World Turns...and the clean version of My Fault)
Mushrooms (My Fault, both versions)
Sausage (My Fault, clean version)
Hotdogs (That's All She Wrote)
Hamburgers (Headlights)
Nachos (Deja Vu)
Steak (Deja Vu, My Mom)
3 Musketeers (Deja Vu)
Doritos (Deja Vu)
Cheetos (Deja Vu)
Cereal Box (Criminal)
Horderves (Nothin To Do)
Lettuce (Cum On Everybody)
Cabbage (Cum On Everybody)
Tuna casserole (Things Get Worse)
Mayo (Oh No)
Mozzarella (freestyle verse ("chop a fella to mozzarella worse than a helicopter propeller"))
Hot Mustard (freestyle verse ("I'll shove a gun in your grill"))
Orange (Brainless)
Bacon souffle (I'm Having a Relapse)
Potatoes (My Mom)
Cinnamon (Music Box)
Toast (Music Box)
Strawberry Marmalade Jam (Music Box)
Graham Crackers (Music Box)
Peaches (Business)
Pears (Business)
Plums (Business)
Feel free to add any others you can think of.