Some ways we save on groceries:
-- not buying drinks such as juice, soda, etc. We mostly stick to water. Not exciting, but healthy and cheap.
-- whenever we go to Costco, we buy a rotisserie chicken for $5 and eat it with rice, and a veggie that night for dinner. You can also use leftover chicken or buy another one and make soup the next day.
-- Go meatless one day/week. Lentils/veggies/rice make a good meal, meatless chili, spaghetti w/out meat, etc.
-- Buy a few frozen (but decent quality) meals that we can eat on nights we normally might be tempted to eat out. For example, the other night I bought 2 packages of this:
http://www.villabertolli.com/products/2200/tuscan-style-braised-beef-with-gold-potatoes.aspx. It cost me $12, cheaper than a fast food meal out with my family.
-- I buy pacakges of Trader Joe's sausages (chicken apple, fontina cheese, etc.) and throw them into a sauce or stir fry them with veggies. They are about $4 each, cheaper than buying chicken breasts or other meat.
I would love to hear others' ideas about cutting costs.