In a Dutch oven or large, heavy-bottomed saucepan heat 2 tablespoons olive oil over medium-low heat and add the onions and garlic with a dash or two of salt and pepper. Cook, stirring often, until softened about 10 minutes.
Add the bay leaf and tomato paste, stir it into the onions and cook a minute or two.
Stir in the crushed tomatoes, ½ cup water, the Italian seasoning, ½ teaspoon salt and ¼ teaspoon black pepper.
Turn the heat up and bring to a simmer. Stir often.