Step 1

Preheat oven to 180°C/350°F (all oven types)

Step 2

Topping: Stir together melted butter and garlic. Place bread chunks in a bowl, drizzle over butter, toss. Set aside.

Step 3

Brown mushrooms: Heat oil in an oven-proof skillet over high heat. (Note Add mushrooms and cook until browned - about 4 minutes. Remove.

Step 4

Sauté garlic & onion: Lower heat to medium high. Melt butter in same skillet. Add onion and garlic, cook for 2 minutes.

Step 5

Add carrot then cook for 1 minute.

Step 6

Add flour, cook for 1 minute. You'll have a pasty mix. Don't worry if it looks dry (depends how sweaty your onions get).

Step 7

Make roux: While stirring, add half the milk and mix quickly to dissolve the paste into the liquid (this happens quite quickly). Add remaining liquid and stir. Add stock powder, salt and pepper, stir.

Step 8

Thicken sauce: Cook for 2 - 3 minutes, stirring regularly. It should start steaming and bubbling a bit, and the sauce will thicken. Thickness test: coat back of wooden spoon, you should be able to draw a line across it (see video, Note 3)

Step 9

Add turkey, peas and mushrooms, and mix into sauce.

Step 10

Top with bread, spread to cover surface. Grate over parmesan if using, top with melting cheese.

Step 11

Bake: Bake for 12 - 15 minutes or until the cheese gets some brown spots. Tent foil over so it doesn't stick to the cheese, then bake for a further 10 minutes.

Step 12

Serve: Sprinkle with additional parmesan if desired, then serve!