Savoury uses for tons of egg whites?

[TeddyIsaHe]

I have lots of egg whites to use up (10!) and need some savoury ideas that aren’t soufflés.

I have a total mind-blank!

[ODFOx]

Refilled baked potatoes: Beat the egg white and add to the potato middle and lovely cheese with whatever additions you like (onion, chopped bacon etc) . WHen it goes back in the oven it rises a little and is deliciously light.
You don't need the yolks for egg fried rice or Chinese egg drop soup.

[LizzieBananas]

We have used them in mash in place of butter.

[PickAChew]

I'm sure they a be frozen if you have too many.

[minipie]

Pisco sours

[FawnDrench]

3 are used in Dumplings in this Oxtail stew recipe

Mayonnaise
Frittata and Omelettes
Cocktails

[FraughtwithGin]

I cannot remember where I saw the recipe, online somewhere, but you can make a savoury equivalent of sweet meringues with parmesan, to serve as canapés. I keep meaning to try it, but forgetting to buy parmesan.

[CtrlU]

Quiche

Frittata