What are your favorite recipes, pots & pans, and secrets for making a lot of food at once? Share with me your giant casseroles, swimming pools of stew, buckets of beans. What enormous caldron of plenty or just-use-frozen-instead-and-this-recipe-is-in-the-oven-in-ten-minutes secrets help you make a lot of food at once?
I want to make two or three large meals at the start of the week and serve them for the rest of the week. I'm looking for 8- or 10- or 12-serving recipes. I'm a competent cook with decent knife skills and access to a range of groceries and specialty markets. I have a standard 4-burner stove and oven. The only gadget I have is a stovetop pressure cooker (NOT an instant pot style thing--it cooks hotter and faster and every time I use an instant pot recipe it goes badly).
Simple or easy recipes or recipes with shorter prep time preferred. Long cooking time is fine. Reheats well is a must.
Food restrictions: no meat and dairy in the same meal, no pork, no shrimp, no shellfish
What should I cook? What tips do you have for making larger quantities? Is there a cooking pot/pan/implement or gadget that you find absolutely essential for making large amounts of food at once?