The first time I made Hamentash I thought it was easy, just a folded butter cookie with jam in it, how hard can that be? I took too long spooning out the filling and folding them so they didn't bind at the corners and they were terrible.

Keep practicing though and you get better. For Lasanga just remember 2 rules. Undercook the pasta and layer everything. Pasta, sauce, meat, cheese, pasta, sauce, meat, cheese.