In large bowl, combine bread crumbs and milk, mix with fork to moisten.Add egg and cheese and mix to combine.Add onion, garlic, spices and ground turkey. Using clean hands, mix just to combine, trying not to over work.
Using an ice cream scoop, shape into golf-size balls, about 12-14 meatballs. Heat olive oil in large heavy bottomed skillet until shimmering. Brown meatballs on all sides, about 8-10 minutes total, being careful when turning, they are very fragile!
Add the marinara sauce and stir up any brown bits and bring to a boil, turning meatballs to coat. Lower heat and simmer gently for 10 minutes.
Meanwhile, cook pasta in boiling salted water per package instructions. Drain. Remove meatballs to serving bowl with some sauce, leaving about 1 cup behind in skillet. Toss penne in sauce in skillet to coat thoroughly.
To serve, place sauced pasta in serving bowl or platter, and either top with meatballs or serve meatballs on the side. Or just put meatballs on top of pasta in skillet and serve. And pass more grated cheese, please! Enjoy!!