Lunch casserole

Easy lunch casserole (makes two portions)
200 grams mushrooms
1 onion
1 box crushed tomatoes (with basil)
100 grams pineapple
1/2 pack seatangle noodles (or other pasta or noodle)
beef or vegetable stock
50 grams light quark or sour cream 
1 tbsp erythritol
Some ham, chicken or minced meat (or not if you want it vegan)
salt, pepper, ginger, paprika, mexican chili powder, oregano and/or other spices you like 

Cut mushroom and onion into small pieces and sautee until soft. Mix with chopped tomatoes, pineapple, noodles, stock and quark. Add spices and let boil for 10 minutes.  




Edit: I had the second portion cold from the fridge, still very tasty!