On a Sheet pan lined with a silicone mat, tinfoil or parchment paper: Scatter prepared vegetables then nestle the formed meatballs throughout. Place the Feta in the middle.
Drizzle Sheet pan ingredients with olive oil. Sprinkle with salt and oregano.
Bake
Bake for 30 minutes or until meatballs read an internal temperature of well done. (160°F for ground beef)
Pasta
While the sheet pan is baking, in a large pot boil 2 Litres of water. Once water is boiling cook the pasta until el dente. Occasionally Stir the pasta while it boils. Penne is el dente in about 9 Minutes.
Combine
Remove the cooked pasta from the water and add the pasta to a large bowl with the ingredients from the sheet pan. Mix to distribute the cheese and vegetables evenly. Add 2 Cups of the pasta water to the bowl. Season with salt and pepper if desired.
Serve the pasta into four bowls and two-three meatballs per serving.
Top with finely diced red onion and fresh parsley if you're feeling fancy.