Edith wanted to add ...
On restaurant menus, dishes would typically be described with the name of the kind of pasta (spaghetti, linguine, angel hair, penne, fusilli, farfalle) and the sauce (bolognese, Alfredo, clam, etc.), but the section as a whole might be called pasta dishes or plates. Pasta casseroles and pasta salads are more typical of home-style cooking.
Another typical American use for the word noodles is in chicken noodle soup, also typically flat strips.
I'm not sure what we would call either buttered noodles (as a side dish?), or the kind of noodles you describe tossed with ham and onions as a kind of skillet one-dish meal. If they're flat strips and typically German dishes, the word 'noodles' might fit a little better than the word 'pasta,' but either is probably okay. (An American skillet dish with ground beef, seasonings, and often some kind of pasta is called Hamburger Helper, because the seasonings come in a box of that brand name. Not something we ate in our family, though.)
hb or penguin or someone might have a better idea of the kind of dish you describe; see if people living in D have better suggestions for cross-cultural descriptions.