01 -
Set oven to 200°C and allow to fully preheat.
02 -
Heat 30–45 ml olive oil in a large skillet over medium heat. Add diced seasoned chicken and sauté until fully cooked, turning once. Transfer chicken to a bowl and tent with foil.
03 -
In the same skillet, add remaining olive oil. Add sliced onion and cook for approximately 4 minutes until slightly softened. Stir in minced garlic and cook until fragrant, about 1 minute.
04 -
Sprinkle flour over sautéed onions and garlic. Stir constantly for 1 minute to form a roux.
05 -
Meanwhile, bring a large pot of salted water to a boil. Cook pasta to al dente as per package instructions. Drain and set aside.
06 -
Gradually pour chicken stock into the skillet, whisking to eliminate any lumps. Add evaporated milk, half and half, Dijon mustard, salt, and pepper. Continue to cook, stirring, until sauce simmers.
07 -
Add 100 g of grated cheese to the sauce, stirring until cheese is melted and the sauce is smooth. Taste and adjust seasonings as needed.
08 -
In a large casserole dish (approx. 23 x 33 cm), combine cooked pasta, broccoli florets, and cooked chicken. Toss to distribute evenly. Pour cheese sauce over and mix until all ingredients are coated.
09 -
Bake uncovered for 15 minutes until heated through.
10 -
Remove casserole and evenly distribute remaining 100 g grated cheese over the top. Return to oven and bake for 10 minutes, or until the cheese is fully melted and lightly golden.