Add about an inch of water to a tall stockpot and place a steamer rack in the bottom. Heat the water to a simmer. Heat the milk in the microwave or in a small saucepan on the stove until very warm ...
Divide ingredients evenly in mason jars starting with dressing, then tomatoes, mozzarella, pasta, and ending with spinach. Place lid on jar and close tight. Shake jar to coat dressing and pour ...
Using round ravioli, just the right size to fit into a half-pint mason jar, is a good cheat for making lasagna. This recipe layers the ravioli with all the other lasagna fixings: marinara sauce ...