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Low FODMAP chicken spaghetti in a casserole dish with spring onion next to it

Low FODMAP chicken spaghetti

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  • Author: Karlijn
  • Total Time: 50 min
  • Servings: 4 1x
  • Diet: Gluten Free


Simple low FODMAP chicken spaghetti. A delicious cheesy casserole with homemade cream sauce and some extra veggies. Gluten-free and low lactose.


  • 300 g (10.6 oz) gluten-free spaghetti
  • 400 g (14.1 oz) chicken breast
  • 300 g (10.6 oz) oyster mushrooms
  • 1 green bell pepper
  • 30 g (1/8 cup) butter
  • 30 g (1/4 cup) gluten-free flour
  • 1 tbsp Italian herbs
  • 250 ml (1 cup) low FODMAP broth
  • 120 ml (1/2 cup) lactose-free cream
  • 80 g (2/3 cup) cheddar cheese
  • Salt and pepper to taste
  • 1 can (14 ounces) diced tomatoes
  • Optional: 2 stalks of spring onion, the green part


  1. Preheat the oven to 180 degrees Celsius (350 F).
  2. Cook the spaghetti according to the instructions on the package. When it is cooked, drain it and put aside.
  3. Cut the chicken into pieces and heat some oil in a pan. Fry until cooked on all sides.
  4. Cut the bell pepper into pieces. Scrub the mushrooms clean and cut them into pieces as well. Add to the chicken and fry for another 3-4 minutes until the vegetables are cooked.
  5. Season the chicken and the veggies with pepper and salt. 
  6. Heat the butter in a saucepan until melted.
  7. Add the flour and Italian herbs. Cook for 2 minutes while stirring continuously.
  8. Stir in the low FODMAP broth and lactose-free cream while you keep stirring.
  9. Cook for a few minutes on medium heat until it thickens and starts to bubble.
  10. Remove from the heat and stir in 2/3 of the cheddar cheese. Taste and add salt and pepper to taste.
  11. Stir the canned tomatoes into the cream sauce.
  12. Grease a casserole dish. Combine the spaghetti, chicken, vegetables, and sauce in the dish.
  13. Sprinkle the rest of the cheddar cheese on top.
  14. Put the casserole in the oven for 25-30 minutes until warm and bubbly. 
  • Prep Time: 20 min
  • Cook Time: 30 min
  • Category: Casserole
  • Method: Oven
  • Cuisine: American