Wash the pumpkin thoroughly and cut it into appropriate pieces.
Cut the chicken breast into bite-sized pieces.
Scoop the soft tofu into large, gentle chunks.
Finely chop the onion and bell pepper.
Add olive oil to a pan and stir-fry the chicken breast.
Add the onion and bell pepper and stir-fry together.
Place the pumpkin, chicken breast, soft tofu, and vegetables into an oven-safe dish.
Mix milk, salt, and pepper and pour into the dish.
Generously top with cheese.
Bake in the oven at 200°C for 15-20 minutes until golden brown.