Peanut spicy vegetable casserole with cheesy noodles

Years ago I was cooked something similar to this by a Nigerian friend.  It had chicken in it, and it was very very hot - and it was served with rice.  A few years later (and still some years ago) I was served a veggie version (green beans, tomatoes and peanut butter with chili) with the added cheesy noodles.  It is now a real "go to" comfort food - the lovely silky mild noodles with the spicy and sweet peanutty sauce/casserole (with or without chicken).

olive oil
chopped onion
chopped celery
chopped mushrooms
chopped green beans
chili flakes
peanut butter
garlic
chopped tomatoes
salt and pepper
lime juice

noodles
grated cheese
butter

Sweat off onions and celery, in olive oil, until a bit soft.   Then add other veg, chili flakes, peanut butter and garlic.  Add some water and cover.  Simmer until softish, then add tomatoes.  Stew until soft and delish (you could steam the green beans and toss them in the sauce later, for a different texture).

Cook noodles.  When cooked stir in grated cheese and butter until noodles are all coated.

Serve, and squirt with lime juice.