This is an old revision of the document!
Prepare the Vegetables
In a skillet over medium heat, sauté onion in butter or olive oil until soft (about 3 minutes).
Add mushrooms, a pinch of salt, and cook until lightly browned (5–6 minutes).
Add to the rice mixture along with the blanched broccoli and turkey.
Make the Béchamel
In a medium saucepan, melt butter over medium heat.
Whisk in flour and cook for 1–2 minutes to remove the raw flavor (do not brown).
Slowly whisk in milk (and cream, if using) until smooth.
Cook 5–7 minutes, whisking, until thickened.
Stir in mustard (if using), parsley, thyme, salt, and pepper. Taste and adjust seasoning.
Assemble
Preheat oven to 350°F (175°C).
In a large bowl or directly in the casserole dish, combine the rice mixture and the béchamel sauce until evenly coated.
Pour into a greased 2-quart casserole dish.
Add the Topping
Mix panko with melted butter, Parmesan (if using), and dried sage or marjoram.
Sprinkle evenly over the top.
Bake
Cover with foil and bake for 30 minutes.
Remove foil and bake another 15–20 minutes, until topping is golden and filling is bubbling.