"just about everything."
Yeah tell me about it, I've been living it for about half a decade and its in almost everything heavily processed. In the "real food" aisles, other than raw soybeans and tofu and some soy "milks" (and soy milk is getting pretty far away from "real food") its pretty easy to avoid soy. If it comes in a box and/or maybe a bag its nearly impossible to avoid soy, wheat, or casein (milk).
Which leads to "hmm, sounds like we're about to live the Paleo diet" which at least on HN leads to ridiculous responses against it, about God intelligently designing us to evolve over the last couple decades to live exclusively on "hot pockets", candy bars, and high fructose corn syrup and cooking at home should be illegal and/or only for rich people and/or only for poor people or perhaps both at the same time but definitely not for us, therefore trying to avoid junk food is a religious sin and ethically immoral and anti-american and everyone should eat as much fake food as possible, err, and well lets ignore the allergy people they can just go curl up and die somewhere. Ah, paraphrasing a bit from a slightly biased perspective.
Lets just say my family eats a heck of a lot of salads with a side of a little roasted, baked, steamed, or grilled meat. Last night was big spinach salad with some kinda vinaigrette and (admittedly non-paleo) sliced seasoned baked potatoes (I think dill and rosemary?) and some overly spicy bbq flavored homemade baked chicken. Want to cut back on meat consumption? Spice the heck out of it till you can't stomach more than a couple oz. You can eat paleo pretty cheaply and healthily if you want, or you can use it as an "excuse" to eat nothing but 32 oz of grilled beef tenderloin each night and then complain.