This is so easy.
chili con carne with beans
philadelphia cheese
Put in casserole dish, stir and microwave. This is delicious with chips.
Although this sounds really good it is not Mexican

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Some of the other things aren’t either but much closer. I was out of the running for suggestions because I don’t do many none made from scratch types of food

. As for Mexican Pizza? I would use a large flour tortilla or two, put a layer of refried beans, a layer of salsa, some chopped black olives (now we are getting kind of away from Mexican), some shredded cheese - bake for 15 minutes at 350. Top with a large dollop of sour cream and sprinkle with chopped fresh cilantro. Slice with a pizza cutter. Or, put a can or two of refried beans in a flat casserole dish or square cake pan (glass makes it prettier) top with a layer of salsa and then cheese, bake until heated through and cheese is melted- then put that large dollop of sour cream and sprinkle with fresh chopped cilantro (can use parsley actually if you can’t find the cilantro it will taste a little different but will still make it look pretty), stick triangles tortilla chips in all around the edges and put a bowl of extra chips on the side - chips and dip.
Of course if you can find a Mexican bakery you can get biscocittos - an anise flavored traditional Christmas cookie (or if you want to make them you can probably look them up on-line, using lard makes them best). Of course, this could be one of those New Mexican things, don’t know, all of my friends who are from Mexico make them every year.
Now, chili con carne is actually more Texan than Mexican and much of what I could recommend would be more New Mexican (yes the cuisines are very different!)
Whatever you do don’t stop at Taco Bell and think you have something Mexican

. I like Taco Bell but it isn’t Mexican, Texan or New Mexican cuisine, it is just fast food!