Premake Series French Onion Soup

I am “starting a new series” where I am testing new recipes that I can premake, freeze and then enjoy at a later date. The first candidate for this is french onion soup which takes a lot of time and effort to make but making 1 serving or 10 servings takes the same time. I premade about 4L of soup with homemade stock and then froze it in ramekins. Then when I am craving it I pull it out of the freezer and bake with a bit of gruyere. It maintains taste fairly well and I highly recommend.