SeizureAdvocate... have your had your thyroid tested to make sure it's functioning properly? One of the biggest problems with gaining weight/inability to lose it is hypothyroidism. I was diagnosed with hypothyroidism 12 yrs ago and gained about 30 lbs in a matter of weeks. I'm still struggling to lose it. Like yours, my husband is very picky and getting him to give up his bacon and burgers would take an act of Congress and he'd probably still defy them... :-) Of course, I'm free to cook whatever meal I want for myself and I often do, but it seems such a waste to cook an entire meal just for myself.
Anyway, if you haven't been tested for thyroid malfunction, ask your doctor to test Free T4 and Free T3, which are the actual thyroid hormones, along with TSH, which is a pituitary hormone that stimulates the thyroid. Many doctors only want to test TSH, but that's really only an indicator and should not be relied as the only indicator of thyroid function. While you're at it, it would be a good idea to check for thyroid antibodies as well. Hashimoto's is the most common cause of hypothyroidism and food allergies/intolerances are very common with Hashimoto's and hypothyroidism, as are digestive issues.
Well, you brought this up elsewhere, and I encouraged you to make sure it really is yeast, but really, most foods don't contain yeast. Eating organic isn't that much more expensive if you avoid the really expensive items such as that beef. Beef is likely to be a bigger problem for you than yeast, but in your case, maybe not. But it's not good for anyone either. Eating organic legumes for protein several meals a week is still a lot cheaper than eating meat. Fish is expensive, but we tend to eat much smaller portions of it than we do when we eat meat, so that cuts down on price as well. Nuts and seeds are also good sources of protein and taste good. I would suggest getting some good vegetarian cookbooks of different traditions and getting to know grains other than wheat. Brown rice is pretty well tolerated by almost everyone, is easy to prepare, and tastes great. Basically, there's a whole lot of foods available in our international economy we can get now, and they taste really good once you learn how to prepare them. Your husband will probably learn to like them and this can help at least some in fixing your problem. All the best.