Ground beef
You can stack animal cuts and steak. These are meats available at your local butcher and you can do anything with them.
Yes Delicatessens often sell their meats by weight as cold cuts, and prepare party trays.
In a grocery store or market, the meat room is the room where the meat is cut by a butcher before placing it out to sale in the store. These are the cuts you purchase such as t-bone or other steak cuts, ground meats, hams, deli meats, etc.
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Cold cuts refers to precooked meats such as lunch meats, bologna and sausages. You can get more information about this at the Wikipedia. Once on the website, type "Cold cut" into the search field at the top of the page and press enter to bring up the information.
broiler- set your oven to broil
Light, low fat choices are best. Chicken or very low fat beef cuts.
Some nutritionists believe that the additives, such as nitrates, in cured meats are carcinogens and are dangerous to consume because they can lead to cancer.
above 32 degrees
There are many food items that can be found in hoagies. This includes cold cuts, cheese, meats such as meatballs and chicken. Sauces of all sorts can also be found.
Katz's Deli does not have their own brand of cold cuts. However, you can order food from them that is cooked and prepared by them. They also carry Boars Head meats.
Can't say for the other meats, though it's likely the same thing, but with beef the grade is usually Choice or Select. Rarely is any Prime cuts sold at grocery stores: normally such cuts of meat are used in high-end restaurants.