This one's a thin shelf, and here's the honest reason: the frozen prepared-vegetable case — creamed spinach, potato gratins, veg casseroles — is almost entirely a few giant food companies, and genuine independents doing it are rare. The gourmet-kitchen makers below actually cook their sides from scratch and ship them frozen on dry ice. It's a short list because doing it right at small scale is hard. As we verify more independents, we'll add them.
Published July 2026 · Updated 7 Jul 2026
An independent gourmet-food company that makes prepared vegetable sides — creamed spinach with real cream and Parmesan, scalloped potato gratin, vegetable casseroles — fully cooked and flash-frozen, shipped in insulated coolers with dry ice. Holiday-table sides you finish in your own oven.
Why it isn't on AmazonA fully-cooked creamed spinach or potato gratin made in small runs and shipped frozen is a prepared-food product — not the additive-built version that dominates the grocery freezer case.
See it at Mackenzie Limited →A kitchen that cooks its side dishes fresh — green beans, mashed potatoes, and seasonal vegetable sides — then ships them frozen in insulated packaging with dry ice, arriving in one to three days nationwide. Straightforward prepared vegetables you reheat and serve.
Why it isn't on AmazonVegetable sides cooked fresh by one kitchen and frozen for you are made to order, not a commodity side produced by the pallet for a national freezer program.
See it at Send a Meal →This seat's open on purpose — we won't pad the list to hit a number. If you ship real frozen prepared vegetables direct, it's earned, not sold.
Add your brand →Prepared vegetable sides — creamed spinach, gratins, casseroles — are dominated by a handful of large frozen-food companies, and cooking them from scratch at small scale with cold shipping is expensive and hard to do well. Plain frozen vegetables have plenty of independent growers, but cooked, sauced, ready-to-heat sides from an independent kitchen are genuinely rare. That's why this shelf is short and honest about it.
Plain frozen vegetables are just the vegetable, blanched and frozen — you cook and season them. Prepared vegetables are cooked dishes: creamed spinach, a potato gratin, a green bean side in sauce, ready to reheat and serve. This shelf is the prepared kind; for plain single-ingredient veg, a grower-based frozen-vegetable source is what you want.
Reheat gently and follow the maker's directions — creamy sides like creamed spinach or a gratin can break or go grainy if blasted too hot. The oven at a moderate temperature usually reheats casseroles and gratins more evenly than a microwave, and covering with foil keeps them from drying out. Heat until steaming throughout, then let it settle a minute before serving.
For a scratch-cooked holiday side you don't have time to make, yes — you're getting a real prepared dish rather than a heavily processed one, shipped to your door. For everyday plain vegetables, a bag of frozen broccoli or spinach from the store is perfectly fine and cheaper. These makers are for the cooked, serve-it-at-the-table sides, not weeknight steamed veg.
Make or grow real frozen prepared vegetables and think you belong here? Tell us → — features are on merit, never for sale.
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