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Applebee's Sauteed Mushrooms & Onions

Moderate histamine

Sauteed mushrooms and onions land at a moderate histamine level, mostly from the mushrooms.

Most of this is cooked to order, which is the best case for histamine. Even so, a restaurant kitchen preps ahead and holds things warm through a service, so freshness varies more than it would at home. The rating above comes from the chain's published ingredients. If a dish is borderline for you, asking how it is prepared tells you more than the menu does.

Applebee's Sauteed Mushrooms & Onions sits at a moderate histamine level, not low and not high. The mushrooms are the reason, since mushrooms carry a moderate amount of histamine on their own, with the soybean oil blend they are cooked in adding a little more.

Why applebee's sauteed mushrooms & onions are rated moderate

The interesting part of this side is what is not driving it. Onion is generally low in histamine and is not a liberator, so the pile of onions is not the issue, and neither is the garlic in the fry seasoning. Mushrooms are the component that sets the level: they are consistently placed at moderate on histamine intolerance lists, and they are not a garnish here, they are half the dish. The liquid butter alternative soybean oil used to saute was also scored moderate, so it nudges rather than rescues. Nothing in this side was aged, cured, or fermented, which is exactly why it stops at moderate instead of climbing higher. Note that it carries a dairy tag as well.

What changes your risk

  • The mushrooms are the whole question — they are the component carrying the level, and they are not something the dish can do without. If mushrooms are a known problem for you, there is no version of this side that works.
  • Portion size — a small spoonful spread over a steak and a heaped side dish are very different loads of the one ingredient that sets the rating. With a moderate food, portion is usually the deciding factor.
  • The oil blend adds to it — the liquid butter alternative soybean oil was scored moderate too, so the cooking fat is not neutral here the way plain oil would be.
  • How long the batch sits in the pan — mushrooms are not a protein-rich food, so a warm-held batch is more a texture and food safety matter than a big histamine one. Freshly sauteed is still the better ask, but do not expect it to change the rating.
  • What it goes on top of — this is a side, and it almost never arrives alone. Piled on something else that is moderate or high, the meal as a whole is what you end up reacting to, not this dish by itself.

Lower-histamine alternatives

People who are only mildly sensitive often manage a small side like this, while anyone reacting strongly to mushrooms will notice it. If you would rather not find out, the items scored lower at Applebee's are Diced Grilled Chicken, Prime Rib, Burger Patties, Asian Greens, Seasoning, Caramel Sauce, Whipped Cream, Syrup, and Red Passion Fruit. Diced Grilled Chicken and Asian Greens are the most natural stand-ins for a savory side, and Prime Rib or Burger Patties are the lower-list options if you are building the main part of the plate around it instead.

How to lower the risk

Order it as a side rather than as the centerpiece, and keep the rest of the plate on the lower list, since with a moderate food the total of the meal usually decides how it lands rather than the one dish. Ask for it fresh from the pan instead of from a batch that has been holding, mostly for quality. Applebee's does not publish anything on this side that can be left off, so take it as it comes or choose a lower item instead, and keep the dairy tag in mind if that is also on your list.

Common questions

Are mushrooms high in histamine?

Mushrooms are generally placed at moderate rather than high. They are the component that sets this side's rating.

Are the onions a problem too?

No. Onion is generally low in histamine and is not a histamine liberator, though a few people simply do not tolerate onion for unrelated reasons.

Does cooking the mushrooms lower the histamine?

Not meaningfully. Sauteing changes texture and flavor, but cooking does not remove histamine that is already present in a food.

Why is this only moderate when so many restaurant sides are high?

Because nothing in it was aged, cured, or fermented. The rating comes from the mushrooms themselves and the soybean oil blend, both scored moderate.

This rating comes from Applebee's own published ingredient statement, read on August 11, 2026. Restaurant recipes vary by location and change over time, so always check the current listing: source 1, source 2. How we rate foods →

Applebee's Sauteed Mushrooms & Onions and Applebee's are trademarks of their respective owners. This page is an independent histamine reference and is not affiliated with, endorsed by, or sponsored by the brand.

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Foods With High Histamine Levels Why Freshness Matters More Than Food Lists Why Leftovers Can Trigger Histamine Symptoms What Are Histamine Liberators?

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References

  1. SIGHI Food Compatibility List — SIGHI (2026)
  2. Histamine and histamine intolerance — Maintz & Novak (2007)
  3. Histamine Intolerance: The Current State of the Art — Comas-Basté et al. (2020)
  4. Low-Histamine Diets: Is the Exclusion of Foods Justified by Their Histamine Content? — Sánchez-Pérez et al. (2021)
  5. Histamine Intolerance: Symptoms, Diagnosis, and Beyond — Jochum (2024)
  6. Guideline on management of suspected adverse reactions to ingested histamine — Reese et al. (2021)