We won't solve this problem until we solve the problem in our entire culture. Crappy food is cheap, Healthy food is costly. A church I belonged to would specifically ask for donations of canned meats like canned ham, fish, chicken, etc., but those were rarities. Because I can go buy 6 packages of ramen for a dollar and drop them into the food bank bin, or I can spend $6 to buy one canned ham. What am I likely to do?

One church I've been a part of had garden plots, and volunteers prepared, tended and harvested and all of the produce went to the pantry. Another option for you.