Rodeo King: Allergens at a Glance
The honest verdict
Rodeo King · Burger King
The Rodeo King is a Burger King burger with a beef patty, bacon, American cheese, onion rings, and BBQ sauce on a sesame seed bun. The allergen profile is anchored by wheat from the bun, milk from the cheese, egg from the mayonnaise, and sesame from the seeded bun. Soy is may_contain via refined soybean oil used in frying and sauces. Peanut, tree nut, fish, and shellfish are not typical ingredients. Cross-contact from shared grills and fryers is possible. The Rodeo King is distinct from the Whopper (which has a flame-grilled patty, lettuce, tomato, and ketchup) and the Bacon King (which has two patties and extra cheese). Always confirm with your specific Burger King location before ordering.
Allergen details change and vary by location. This is a general guide — always confirm with the restaurant before ordering. Not official or medical advice.
Key facts
The Rodeo King features a sesame seed bun, making it a direct source of sesame allergen in addition to wheat.
American cheese on the Rodeo King is a milk-based product, adding dairy to the burger.
FDA — Food Allergen Labeling and Consumer Protection Act (FALCPA)
Mayonnaise on the Rodeo King contains egg yolks, making egg a confirmed allergen in the standard preparation.
Every major allergen, one clear grid
Each of the nine major allergens marked for Rodeo King at Burger King — Contains, May contain (cross-contact or varies), or Free. Anything we couldn't confirm defaults to "may contain," because a shared kitchen can't be ruled out without the restaurant's official menu.
- MilkContains
American cheese is a standard ingredient on the Rodeo King. Milk is present in the cheese slice. Some locations may use a different cheese — confirm with the restaurant.
- EggContains
Mayonnaise is a standard ingredient on the Rodeo King. Mayonnaise is made with egg yolks. If you order without mayonnaise, egg is removed.
- Wheat / GlutenContains
The sesame seed bun is wheat-based. The onion rings are also breaded with wheat flour. Both the bun and onion rings contribute wheat to this item.
- SoyMay contain
Refined soybean oil is used in Burger King's fryers for onion rings and other items. BBQ sauce may also contain soy derivatives. Highly refined soy oil is FDA-exempt from allergen labeling and tolerated by most with soy allergy. Those with severe soy sensitivity should confirm the oil and sauce ingredients.
- PeanutFree
Peanut is not an ingredient in the Rodeo King or its components. Cross-contact is very unlikely in Burger King kitchens.
- Tree NutFree
Tree nuts are not an ingredient in the Rodeo King. Not present in the bun, patty, cheese, bacon, onion rings, or BBQ sauce.
- FishFree
Fish is not an ingredient in the Rodeo King. Burger King does not typically fry fish items in the same oil as onion rings, but cross-contact is theoretically possible if a fish sandwich is cooked on the same grill.
- ShellfishFree
Shellfish is not an ingredient in the Rodeo King and is not typical in Burger King kitchens.
- SesameContains
The bun on the Rodeo King is a sesame seed bun. Sesame seeds are a direct ingredient. This is a confirmed source of sesame allergen.
“May contain” means cross-contact is possible or the answer varies by location — not that the allergen is a listed ingredient. For a severe allergy, treat “may contain” the same as “contains” until the restaurant confirms otherwise.
Small changes that remove an allergen
Simple modifications that can take an allergen off your rodeo king. Always name your allergy when you order and ask staff to confirm — a modification only helps if the kitchen prepares it separately.
Order without cheese
Order without mayonnaise
Request a bun without sesame seeds or a lettuce wrap
Order without onion rings
A modification lowers exposure but doesn't erase cross-contact from shared fryers, grills, or prep surfaces. For a severe allergy, confirm the prep with a manager before you eat.
Read this before you order
Cross-contact & severe allergies
A “free of” mark on the grid above means the allergen isn't an ingredient — it doesn't mean the item was made in an allergen-free kitchen. Two things matter most:
Shared fryers & equipment
Burger King uses shared grills for all burger patties and shared fryers for onion rings, fries, and other breaded items. Cross-contact between the Rodeo King and other menu items containing milk, egg, wheat, soy, or sesame is possible. The onion rings are fried in the same oil as other breaded items, which may introduce trace wheat or soy from other products. Ask staff about grill and fryer practices at your specific location.
If your allergy is severe
For anaphylactic allergy to wheat, milk, egg, or sesame, confirm bun ingredients, cheese type, and mayonnaise presence before ordering. The Rodeo King is not guaranteed safe for any of these allergens without restaurant-level confirmation. Carry your epinephrine auto-injector. If you cannot confirm preparation details, consider a simpler burger option with fewer components.
This guidance is general and can't account for how any single location prepares your food. The restaurant's staff and official allergen menu are the final word — when in doubt, ask, or choose something else.
❓Frequently Asked Questions
The Rodeo King is a limited-time or regional burger from Burger King. It features a flame-grilled beef patty, American cheese, bacon, crispy onion rings, and BBQ sauce on a sesame seed bun. It is essentially a BBQ bacon cheeseburger with onion rings stacked on top. It is distinct from the Whopper (which has lettuce, tomato, and ketchup) and the Bacon King (which has two patties and extra cheese).
Yes, the Rodeo King contains dairy in the form of American cheese. The cheese slice is made from milk. If you order the Rodeo King without cheese, the dairy is removed. The bun and other components do not typically contain milk. Confirm with the restaurant whether the bun or BBQ sauce contains any dairy derivatives.
No. The Rodeo King contains wheat from the sesame seed bun and the breaded onion rings. There is no standard gluten-free version available at Burger King. A lettuce wrap instead of the bun removes the bun wheat, but the onion rings still contain wheat. Ordering without the bun and without onion rings would remove all wheat, but cross-contact from shared grills is still possible.
Yes, the bun on the Rodeo King is a sesame seed bun. Sesame seeds are a direct ingredient on the bun top. If you have a sesame allergy, request a bun without sesame seeds or a lettuce wrap. Burger King may offer alternative buns at some locations — confirm with the restaurant.
The Rodeo King contains soy in the form of refined soybean oil used for frying onion rings. Highly refined soy oil is generally tolerated by most people with soy allergy because the protein is removed during processing. However, the BBQ sauce may also contain soy derivatives. If you have a severe soy allergy, confirm the oil type and sauce ingredients with the restaurant before ordering.
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Read moreFind out which foods you actually react to
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Please verify before ordering
Allergen info changes and varies by location
Recipes, suppliers, and preparation methods change often and differ between locations, so the details here can go out of date or not match your specific Burger King restaurant. Always confirm directly with the restaurant and check its official allergen menu before ordering. This page is a general research summary — it is not official information from Burger King, and it is not medical advice. If you have a food allergy, decisions about what is safe to eat should be made with the restaurant and, where relevant, your healthcare provider.