Not sure. One of my favorite dishes at a restaurant I used to work with was grilled salmon with avocado salsa. That was wonderful - but primarily because the textures worked - the crisp/chewy grilled salmon with the soft/silky avocado, all set off by a tomato-lime citrusy tang in salsa. Very nice.
But since canned salmon wouldn't give you the crispness, I'm not sure I'd like it as much. I think maybe if you mixed salsa with the canned salmon and put it on bread or crackers with sliced avocado, that would be kind of nice. Maybe a piece of crisp lettuce too.
Maybe broil it? Then you get a little crispness to contrast with the softness of the salmon and avocado. (disclaimer: mashed avocado spread on toast, topped with crumbled walnuts, drizzled with olive oil, and broiled is one of my favorite snacks.)
Oh, then what about putting them side by side in a dish: some flaked salmon and sliced avocado, topped with sweet chili sauce and a little salt and pepper? Then you can taste each element separately, mix some together, and have the best of both worlds.
I found a tortilla and wrapped it all up in that. Threw on some chili sauce and some hot sauce. By the sounds of it, that would gross the majority of you out, but it was pretty tasty. I might even plan to eat it again one day.