My experience with tripe is that it smells like sick when it's cooking but can be fine to eat. Not sure that "fine to eat" makes up for stinking up your apartment though.
While my partner and I are in newborn mode we're very much frozen food dinners at the moment, but before it all went down (or came out, as it were) we did do veal and ricotta meatballs in slow cooked tomato sauce and froze'm. Also have a bunch of varieties of basil growing in the kitchen and keep having to trim them and freeze blocks of fresh pesto - lemon, purple, minette, genovese, lettuce leaf... we just mix all the breeds into one pesto though. Then you just toss it in the pan with your cooked pasta and some oven roasted cherry tomatoes, damn.
So like, homemade okonomiyaki is probably as exotic as we regularly do. But I find a lot of satisfaction in developing and perfecting a comfort food - we've worked on a homemade pizza dough raised to be as fat as Amoeba-adjacent Berkeley classic Fat Slice when I'm feeling homesick, my partner has been baking her own sandwich loaves every two weeks or so for many years and has a great recipe that has cooked brown rice in the dough to add some soft density to it, or learning to get the eggs in carbonara just right so they're still saucy and not quite cooked. That kind of thing.