Preheat the oven to 400F.
In a large pan on the stove top, add olive oil, onion, and ground beef.
Using a spoon, break up ground beef.
Cook over medium heat until the beef is cooked through and the onion is tender. (drain if desired)
Add the garlic, bay leaves, italian seasoning, and tomato paste.
Stir to combine.
Stir in crushed tomatoes and water.
Bring to a low boil.
Remove from heat and place in a preheated oven, uncovered.
Bake for 1 hour stirring a few times while baking.
Sauce should be bubbly and reduced in volume slightly.
Remove and let cool.
Serve immediately over your favorite pasta or spaghetti squash.
Garnish with parsley and grated cheese.