My wife loves pho. I'm more of a stif-fry person so I order that when we hit up a pho place.
Lots of my comfort foods I try to stay away from because of the sugar/carb load, but I still indulge from time-to-time, especially if I am sick.
Give another vote for Grilled cheese w/ tomatoe soup. There was a food truck called the Ultimate Melt that would come to my work campus when I was in Bellevue, made really good takes on grilled cheese. I especially loved the Buffalo Chicken Melt and the Chicken Pesto. They also made one that had Cheetos and mozzarella sticks inside. I am one punch away from eating another free one, so hoping I can make my way back there soon to cash out.
Love me the Kraft Mac & Cheese. Its still way better than the other ones, even the "premium" Cracker Barrel ones. There was a great sharp cheddar one that had a sharper cheese sauce than velveeta that was my favorite, but a lot of placed don't carry it anymore because they threw in the Cracker Barrel ones. Those are alright, but not the same. And the old Sharp Cheddar Kraft ones used to come with a jalapeno seasoning mix that really kicked it up a notch. Tried to recreate it at home but never quite get the combination right (probably because its got some delicious preservative in it I don't carry in my pantry!)
Since I have a house w/ a nice grill now I will regularly grill up some hot dogs or burgers. We keep a steady stock of burger patties from Costco intended for parties/gatherings and I've got plenty to last a while while keeping isolated.
Chicken quesadillas are another solid comfort staple for me. I make a creamy chipotle sauce to make them like a better version of the Taco Bell ones. Just blend up some chipotle peppers with sour cream or mayo (the mayo tastes more like TB, but sour cream tastes just as good). These are actually one of our go-to quick meals. We pre-cook/shred chicken breasts, or buy a costco rotisserie chicken and shred that up so we have a bunch of meat for the next couple days. Works great for whipping up something fast on busy evenings.
Last one I'll mention is a new dish for me, but has quickly become something I love. Chicken Tikka Masalla. Its an Indian dish that has spicy chicken in a creamy tomato-based soup. Serve with rice and garlic naan bread and it can be a hearty dish. I recently went to a local restaurant and tried this and fell in love. Decided it was expensive to go as many times as I was wanting to go, so I looked up a recipe and tried my hand at it. I botched a bit of the recipe, but my wife loved it so it was a big hit. If you ever have the opportunity to try it I highly recommend.