Quick Smoked Salmon Tart 

This is an easy, delicious, versatile, and beautiful dish. I cut the pieces about 1 1/2" x 1 1/2" for hors d'oeuvres. Cut larger, they would make a great appetizer, and cut even larger, it would make a very nice casual dinner with a salad. I used more salmon than the recipe called for because I had plenty and wanted to make sure each piece had some fish. It was a big hit. I may try Greek yogurt instead of the sour cream next time. The pickled onions were a great addition.

I found it easier to cut the pastry into squares and then dress each one separately. The result was fresh and full of flavor. I brought a big platter to a party, and everyone loved it.

Beautiful and tasty but the pastry is way too greasy/heavy. I would cut it into smaller pieces rather than the slabs shown in pic. Sits in your stomach like a brick otherwise. Lemon zest as mentioned is a great addition.

Made it just as it is and everyone loved it! Next time I may at lemon zest and pepper as others recommended.

So easy and everyone loved it--perfect finger food for a garden party. I skipped the capers and grated lemon zest and ground pepper over the top. Delicious.

Delicious! Even with the frozen pastry!

This was a huge hit on Girls Night. I mixed whipped cream cheese and sour cream for the spread. I used a mandolin to thinly slice the red onions and the cucumbers. It took very little time and looked fantastic on the plate. Light and perfect on a warm day. I'll definitely make it again.

To make it a bit more healthy and flavorful, I’ll substitute sour cream with labneh that is mixed with lemon juice, olive oil and spice like zaatar.

Thought this was just ok. Needed something else to give it a bit more taste. Maybe cream cheese and sour cream would have been better. Definitely needs a squeeze of lemon juice. Probably won’t make again.

Has anybody tried using puff pastry empanada discs? Often available in Mexican or other ethnic markets, usually about 5" in diameter, and there's no need to roll them out, but make sure you get the ones "for baking", not "for frying". Also, somebody asked about substituting Greek yoghurt for the shmeer. Of course! Or lebni or skyr, etc.

You can substitute Persian cucumbers for english cucumbers. Both are thinner skinned with less seeds and yield smaller rounds

I made this with frozen pastry (mine came in a 200g brick) which I defrosted and then rolled out to about 7” x 8” rectangle. It came out way too thick and puffy. Probably should have rolled out to close to twice that size. Still tasted good (and looked good, once it was crushed a bit during cutting).

Though I respect the author's choice of sour cream, I might use goat chevre blended with capers in a processor [to make it more spreadable]. Chevre is healthier than sour cream and is quite fantastic with smoked salmon. Yes, I will also make this for a gathering!