When folks are under stress, comfort food is just that—comforting. We are under stress with the virus and the unusual amount of government involvement in our lives to try to keep everyone safe. It probably is the better part of wisdom to cook at home because even take out or delivery food needs to be handled with care in case the preparer, delivery person or even just the person restocking supplies is ill. Remember that the guidelines for take out these days are to remove the item carefully from its packaging and microwave it while treating the packaging as if it is contaminated and do your handwashing.
One of the easiest comfort foods is Mac 'n Cheese out of a box. If the box sits in your pantry for a few days it will be safe to handle. Most of them only need butter (margarine) and milk as extra ingredients. If I don't have milk around I can use a little bit of sour cream and a little bit of water to get it to the correct consistency. Sour cream has a much longer refrigerator life than fresh milk.
Spaghetti is an easy comfort food. The pasta sauces in jars are decent and have a less 'tinny' taste than the pasta sauce in cans. Frozen meatballs, while mostly filler rather than meat, are not too bad thawed in the heated pasta sauce and following the package directions for boiling your pasta is not rocket science.
Stews are comforting and especially easy if you have a crock pot. Carrots keep a long time in your refrigerator. Boneless chuck roast cut into about 1” chunks, a good handful of carrots, a package of dry onion soup mix, a cup of fluid (red wine, broth or even just water), smashed garlic cloves and you have the basis for a good stew that will be ready in 4 to 6 hours depending on your heat setting. If you have celery, potatoes, bell pepper, turnip etc. you can tthrow them in, but they are not needed. Serve with noodles or boiled potato.
Sweets are almost always comforting. Get some slice and bake cookies to have on hand or have around the ingredients you need to make cookies with your family. Make a cake from a boxed mix and amuse your family as you attempt to ice/decorate it. If you have a can of pineapple slices, brown sugar and a boxed cake mix, make a pineapple upside down cake.
Eggs & bread = french toast.
Eggs & leftovers = frittata
Hardboiled eggs = egg salad or deviled eggs or slices on a cobb salad
Most 'comfort foods' are based in carbs and fats so weigh the relative need for comfort vs need for calorie control during a time of relative inactivity.