Does anyone...?

You might get more replies in the recipe thread.Frozen veggies are fine Some I would add just before eating.Broccoli is nasty when coked too long,just one example.

Frozen vegetables are fine, and in many cases are more nutritious than what you might buy fresh, which often will be days or even weeks off the plant or out of the ground. Since you're trying to lose weight, you probably want to stay away from frozen veggies that have sauces. I tend to prefer fresh veggies myself, for their versatility (can roast, stir fry, or eat raw, whereas with frozen I feel like I'm pretty much limited to steaming and boiling). Plus frozen beets, etc. don't come with the greens attached, and I like to cook those as well. But I do generally keep frozen peas (since I don't want to shell them) and frozen corn (fresh corn is for eating on the ear; I don't like cutting the kernels off) on hand, and occasionally will buy mixed veggies, which is a quick way to get them rather than having to prep small amounts of three or four veggies myself. (My favorite is Green Giant's "digestive health" mix of carrots, navy beans, and spinach.)

So I thought I could make bulks of vegetarian and then maybe add some meat when I thaw? Idk. Suggestions?

If you mean actually adding the meat to the food after it thaws, I think this would work best with things like stews, curries, and soups, rather than casseroles or lasagnas, unless you don't mind kind of tearing your serving apart to insert some meat -- and even then, the flavors likely won't blend in a satisfactory manner just during reheating.

If you just mean cook some meat and have it on the side with your meal while your Mom eats just the vegetarian meal, that should work with anything. (Also, just in case you meant it literally when you said "add some meat when I thaw," for food safety, please cook the meat separately after or while the other food is thawing, and then heat them together when the frozen food has been fully defrosted.)

I use frozen veggies a few times a week. the only thing I don't like about some frozen veggies is that just heating them up in the microwave they get a little mushy, so I like to defrost them, and then put a little bit of oil in a pan and maybe some garlic, a little hot sauce. Cooking them that way, they get a little brown and more flavorful with a better texture.
However, those "steamers" packs are usually significantly more expensive per serving than just a plain old bag of frozen veggies, so that's something to look at when you are making your selection at the grocery store.

I buy frozen veggies instead of fresh. Lots of times if I dont want to cook the fresh ones will wilt.