Summary of "This Onion baked burger patties will make you forget fast food Ever existed 🍔🔥🔥"

Ingredients (with quantities if given)

Sliced onions — sliced; layered in the bottom of a baking dish
Seasoned beef patties — placed on top of the onions (seasoning details not specified in subtitles)
Cream of mushroom soup — spooned over patties until fully coated
Beefy onion soup mix (packet) — sprinkled evenly over all patties
Sliced mushrooms — layered on top of the soup-coated patties
Onion powder — light sprinkle
Black pepper — light sprinkle
Swiss cheese — 1 slice per patty
Buns — for serving
Caramelized onions + mushroom gravy — from the baking dish; used as topping

No extra salt needed, because the beefy onion soup mix provides enough salt/seasoning.

Baking dish
Oven preheating not mentioned (bake at the stated temperature directly per subtitles)
Assembly method: layer ingredients directly in the baking dish

Layer onions: Place sliced onions at the bottom of the baking dish.
Add patties: Set the seasoned beef patties on top of the onions (one per serving/patty).
Coat with soup: Spoon cream of mushroom soup over each patty and spread to fully coat.
Season: Sprinkle beefy onion soup mix (packet) evenly over all patties.
Top: Add sliced mushrooms on top.
Season lightly: Sprinkle light onion powder and light black pepper over the top.
Add cheese: Place 1 slice of Swiss cheese on each patty.
Bake: Bake at 350°F / 175°C for about 1 hour, until fully cooked and tender.
Serve:
- Serve each patty on a bun.
- Top generously with the caramelized onions and mushroom gravy from the baking dish.

Spread the cream of mushroom soup thoroughly so patties are fully coated.
Use the soup mix for salt/seasoning—don’t add extra salt.
Use the baking dish drippings (caramelized onions + mushroom gravy) as the main burger topping for a rich, savory, “melt-in-your-mouth” result.