impossible quiche using Gluten Free Bisquick

two different versions of GF impossible quiche below     :

1 cup shredded Swiss Cheese or mild Cheddar (I used a mexican blend)
1/4 cup finely chopped onion
2 cups milk (I used almond milk)
1/2 cup GF Bisquick or regular Bisquick
4 eggs
1/4 t.  salt
3 or 4 drops of hot pepper sauce (optional)
Paprika (if desired)
You can add cooked ham or bacon too if you eat meat.(canned salmon can be used as well if you like)

Preheat oven to 350..  Lightly butter 9" pie plate.  Distribute bacon or ham if using, cheese, and onion evenly on bottom.  In blender beat milk, Bisquick, eggs, salt, and hot pepper sauce for 1 minute until frothy.

Pour over bacon mixture in pie plate.  Sprinkle lightly with paprika.  Bake 50 to 55 minutes until golden brown and knife comes out clean.  Let stand 5 minutes before serving.,

Below is an alternative---grease the pan, lined the bottom with chopped onion, bell pepper, salmon pieces (from a can), cheddar cheese and a bit of cottage cheese.  Mix 6 eggs, 1 cup of milk,1/3 up to 1/2 cup Bisquick,and pour over and bake like above. 

ps--you can also slice tomatoes and place on the top and bake them with the quiche

This recipe below is also good https://nannykimsrecipes.blogspot.com/2021/05/quiche-gftuna.html