Generally deli products can last for a few months if they're not open from their original package. Once opened, the items can easily spoil in a matter of a week or less. I would say you have approximately 3-5 days depending on refrigeration.
Prosciutto can be kept in the refrigerator for forty days according to the website of the consortium of prosciutto di Parma producers.
Good for about a month IF you remove it from plastic, wrap in 'butcher paper' and store in fridge.
About a month if you remove the plastic, wrap in 'butcher paper' and keeep in fridge.
your salami will last quite awhile if unopened, depending also on the type of salami. If it is sliced an just kept in a paper bag you will probably have good 1-2 weeks out of it before it goes hard an starts to become inedible. If it is a whole roll of salami it usually has a wax protecting coat on it that will stop it from getting stale and, if unopened, will last for many months out the refrigerator
As long as the equipment used to slice the onions was clean and sanitary, sliced onions are perfectly fine to eat. Store sliced onions in the refrigerator.
This food will keep for about 5 to 7 days in the refrigerator. Place the food in an air tight container for the best results. This food can easily be transferred to the freezer for longer storage time.
it will be 2weeks
Crab salad should keep safely in the refrigerator for three to four days.
Cauliflower should be safe for 1 week if stored in the refrigerator.
about an hour or two.
Until it evaporates
6 months
1 week
Ham should be good 4 to 5 days refrigerated.
Bananas do not keep well, a day maybe two.