There's always the sage and brown butter with garlic/salt/pepper/a few pepper flakes.
But this is more fun, ok, so it's not simple
Veal Sauce for Potato Gnocchi
Sauce:
1 ½ T olive oil
1 ½ T butter
1 lb ground veal or if no veal, you can use ground beef
1 large clove garlic, minced
1 very small onion, minced
1 small carrot finely chopped
1 medium sized portabella mushroom cap, chopped very fine, remove scales from underneath/scrape out/off
1 15 oz can good quality crushed tomatoes with juice, you’ll break them up
1 T tomato paste
1/2 cup red wine
1-1/2 cups beef broth
Salt and pepper to taste
½ T dried parsley
Heat oil and butter in a heavy cast iron [if you have it] skillet. Add veal or beef/garlic/onion/carrot/mushroom and cook until pink is gone. Break up the meat to fine pieces. Add tomatoes and juice/wine/broth/tomato paste/parsley. Bring to a boil then turn down to medium low and cook about an hour longer. Add salt and pepper and, taste for seasoning and let reduce to semi thicken the sauce. This is supposed to be a loose sauce, not real thick. Toss with your gnocchi and lots of parm cheese.