Forgot to add....
Do look into getting your own side of beef and/or pig. If you've got a separate freezer, our butcher packages the meat in flat plastic sheeting (recyclable) and covered with white paper (recyclable). Granted, it's a fairly large initial expenditure to purchase ALL that meat at once, but it averages out to a very reasonable amount.
Last year's cow was $2.79/lb - for everything - sirloin steaks, T-bone steaks, roasts, ground beef.....all of it! So once one gets used to the sticker shock (and budgets appropriately), it's a very great way to get really good meat reasonably priced.
I cannot recall what the pig was per pound....I want to say total cost was about $350 for our last pig....but don't hold me to that. All the pork chops you can imagine, four terrific hams, bacon galore.....yeah, that's worth it!
Our farmer friend is anti-biodic free, hormone free, but cannot guarantee their feed corn is gmo-free. But the animals are treated well, have great space to live in and overall are a healthy herd. My flock isn't gmo-free, so I don't see much difference between my meat birds and her herds.
Look into it to reduce the Styrofoam.
Or else see if your local preschool needs Styrofoam trays for craft/paint projects! That's how I got rid of most of mine when my kids were that phase of life.....