At any U.S. entry point they always ask if you have any type food or plants with you.
Things like fresh fruit, plants, ...... are a no no.
Usually unopened canned, packaged, ...... items are OK.
https://help.cbp.gov/cgi-bin/customs...364936&p_sid=R
That site should answer all your questions. Just click on it.
"The Department of Agriculture has recently relaxed rules for travelers arriving from Canada with food products involving some meat products. Beef and game products are now allowed entry. This includes frozen, cooked, canned or otherwise processed beef, veal, venison, elk, bison, etc. Hunter harvested game, including deer, moose, wild sheep, goats and bison is admissible from Canada for the traveler's personal use if accompanied with a hunting license, tag or equivalent permit.
Meat products from domestic lamb, sheep and goats is still prohibited entry from Canada."
Guess you could show them your unopenned item and see if it passes inspection.