I can’t speak to Costco. But TJs has some options that are good and some that are terrible. Like the frozen palak paneer is just paneer, spinach, and spices. It seems pretty minimally processed compared to other frozen food. I’ll heat up that with their frozen Chana masala and make a pot of rice for an easy dinner. The frozen kibbeh also has a pretty basic ingredients list and is a nice supplement to a plate of veggies or a salad. But other stuff there is crammed full of ultra processed ingredients, sugar, salt, and cheap oil. So check the ingredients list and be picky. The green chile mac and cheese is so good, but not at all healthy. :)