Ταλιατέλες με σολομό και σπαράγγια / Tagliatelle with salmon and asparagus

Having seen an asparagus commercial on TV, I was compelled to cook something with them. I therefore found this recipe in one of the american magazines that Xara has sent me. We like asparagus a lot but they're not among the veggies we usually have at home. I prefer green asparagus, however when I sent my better half to buy me some, he came back having once more bought something other than I had asked:)) Never mind, the recipe turned out delicious, the smoked salmon (which you know by now we like a lot) played an important role.We need1 lb tagliatelle1/2 lb asparagus, cut in three1 Tbsp butter