I love to eat a huge sub sandwich, and when I buy one, I ask for all the extras. Onions, pickles, hot peppers (or hot sauce), mustard, and whatever other extras the store has. Those things make me rip killer SBDs that make others run to the nearest window.
Sometimes when I want a quick snack, I dip some tostita(?) chips in premium salsa. Sometimes I get the SBDs, other times I rip loud ones that don't smell much.
Often when I need to have food, and I have no fridge to store it in, I buy some athlete energy bars. Those things can really get the methane going.