I also have to do egg-free breakfast due to the baby's food sensitivities. Kind of a pain, since everyone else does eggs pretty much daily with only rare exceptions.
For a while I made a big crock pot full of lentils and ate off of that for a week or so. Then she started showing signs of intolerance to lentils, too. I basically have to do a rotation diet at this point. Dairy, wheat, legumes (including peanuts. Soy as a minor ingredient doesn't seem to be an issue, thankfully), tomatoes, eggs, chicken, and turkey all seem to cause problems to some extent (we're hoping the poultry issues will go away if we can get better quality - we're working on a chicken coop now). I do still eat chicken, eggs, and tomatoes in limited quantities (2-3 eggs a week, rather than every day), and it seems to be going ok - I figure it's better to have them as part of the rotation rather than risk her developing symptoms with beef and pork, too.
Anyways, most days I eat dinner leftovers for breakfast. Which isn't proper rotation diet. Oh well.
Our strategy in meat buying:
We budget for stocking up, and have a big chest freezer. One of the local stores had pork roasts for $.99/lb last week. We bought 50lbs. We bought 1/8 of a cow last month and hope to buy a large portion of a pig soon. We buy meat that's on clearance and either use it immediately or freeze it. After Christmas, we were able to buy a bunch of (good size, reasonable quality though probably not organic) turkeys for $5 each. Between just plain eating and bone broth, these provide many meals, even with 7 people in the house. We usually bake some, and grind some up for turkey burgers/meatloaf/whatever (frozen as patties).
Easter is coming up, and Easter meats will likely be on big sale afterwards! Yay ham! We're taking that into account in our food budget for this month and making sure we have enough towards the end that we can do some stocking up.
We try to limit buying meat that isn't on sale, and are at the point where we have enough of a stock that we never have to do emergency meat buying for meals.
Everything gets used up as much as possible. Drippings get saved and used in another meal (often with the fat skimmed off and given to the dogs, who, other than stuff like this, eat a raw diet). Bones get frozen, and made into bone broth once I have enough to be worth it. The leftover meat that is strained out, along with the bones that are soft enough to break with my fingers, get fed to the dogs.
We try to balance quality and expense. For us, that means eating some meals with lower quality commercial meat, alternated with our grass-fed beef and so forth. Hopefully we can get to the point where we don't have to do this.
Our housemate formerly worked in a meat department, and knows how to cut meat. This saves us money because we can buy primal cuts and have minimal processing fees included in the cost (this would save us $0.50/lb from one of the local grassfed beef providers).
I find it hilarious that the ad at the bottom of my screen as I type this is for Cocoa Pebbles Treats.