I just returned from camping for 7 days and I couldn't wait to tell y'all about this product I found.
http://tastybite.com/products/
They sell the lentils at Costco so maybe I'm the last in the world to know about it but it's heat & serve vegetarian food that has no bad ingredients! I've only tried a handful of the Indian foods & we loved each one (kids included.)
These were a lifesaver for packing dinner at breakfast time. I'd heat the food & put into Thermoses to keep hot. I'd use another Thermos to cook brown rice all day long. At dinnertime, we had healthful Indian food & rice.
I highly recommend these things.