Homemade Spaghetti Sauce

olive oil

85% lean ground beef

Salt and freshly ground black pepper

small yellow onion, (finely chopped (1 cup))

garlic cloves, (minced (1 Tbsp))

crushed tomatoes ((recommend Hunt's for best flavor and consistency))

water, (or as needed)

tomato paste

chopped fresh basil

dried oregano

finely shredded parmesan, (plus more for serving)

Chopped fresh parsley, (for garnish (optional))