Left over smoked salmon?

Make a carbonara but with fine strips of smoked salmon instead of bacon.

Snip it into small bits and stir it through scrambled egg.

Make Macaroni cheese and add it to the cheese sauce just before mixing with the pasta

Stir into scrambled egg, or pasta with cremefraiche /cream cheese

Wilt some spinach then drain off the liquid, add finely cut up smoked salmon, wee squeeze of lemon and a tub of creme fraiche. While you're waiting for it to come up to a simmer, boil a bag of gnocchi. Chuck the cooked gnocchi into the sauce. My favourite go-to 10 minutes midweek dinner. Works well with (much cheaper) trimmings.

Similar to above
Fry finely chopped onion & celery until soft but not brown.
Add prawns, slosh of white wine, dollop of cream cheese, then at last minute add smoked salmon to just heat through & black pepper to taste.
Serve with spaghetti or linguine.

An omelette if it's just a small amount.
Or pasta with a creamy sauce and parsley.

We have it with pasta - bows (farfelle) go well.

Fry a couple of leeks gently in oil whilst the pasta is boiling, when nearly ready, add the salmon, some single cream, a squeeze of lemon and some black pepper. Warm through for a minute or two before mixing the pasta in. (No Parmesan).

You could make fish cakes. Or a smoked salmon pate.

Fry leeks, mushrooms, tomatoes and stir through the salmon and some creme fraiche with past. It's delicious.

Pasta even

It would be lovely in a quiche - perhaps with some veg?

I made a crustless quiche with leftover smoked salmon:
4 eggs
200 mls milk
90g cheese
Add sautéed spinach and onions
Pour into oven proof dish and add salmon slices and more cheese
Cook in 180 degree oven for 50 minutes

It's nice in a toasted cheese sandwich.