It is probably freezer burnt. You may want to throw it away because it won't taste that great.
Foods of this kind can be frozen for a long time. If it is stored in an air tight container. It can last up to 6 months to a year in the freezer.
Well it is not recommended to eat freezer burnt stuff! But if you must a good easy thing to make is Beef tips rice and gravy. Forget the above answer. Actually, there are two steps: (1) remove lid from garbage can (2) place meat in can.
ground beef ground
ground beef = Rinderhackfleisch ground beef = Hackfleisch
A chicken can contain toxins but they would not be caused by freezer burn.
It dosent
If meat has been protected from freezer burn, roast and steaks stay good 8 to 12 months. Ground meat only stays good for 2 to 3 months.
Beef comes from cows. Ground beef is beef put through a meat grinder. Ground beef can be used to make hamburgers or meatballs or other dishes.
Ground beef is meat, a protein. Not a carbohydrate.
From the USDA fact sheet on meat preparation: focus on ground beef: "For longer freezer storage, wrap in heavy duty plastic wrap, aluminum foil, freezer paper, or plastic bags made for freezing. Ground beef is safe indefinitely if kept frozen, but will lose quality over time. It is best if used within 4 months. Mark your packages with the date they were placed in the freezer so you can keep track of storage times." (http://www.fsis.usda.gov/Fact_Sheets/ground_beef_and_food_safety/index.asp)
The stew isn't going to taste very good if you do. If the pieces are large enough, try removing the freezer burned spots first. Then cook up a small portion of the meat for a taste test. If it passes muster, then you might be able to use it with better results.