I've read a lot of negatives toward canned pasta, but for me, nothing beats a can of Chef Boyardee's Beef Ravioli. I know it is kind of disgusting, BUT I LIKE IT. I got hooked on it in elementary school because I never ate anything like it at my house growing up. I don't even like real or fancy ravioli.
Also, give me a can of beef tamales any day. It is usually hiding on the top shelf of the Mexican food isle.