My mother has never used anything but ground beef and some seasoning. She browns them in a pan and then adds them to sauce to simmer. They hold together by some magical means. I'm allergic to tomatoes, so if she makes meatballs for me, she cooks mine entirely in the fry pan.
At home, we use ground beef and fresh herbs, usually. Fry in a pan or bake in the oven. They are sometimes slightly dry, but only if we overcook them.
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