Ingredients for - Tuna Noodle Casserole with Mushrooms

1. Penne pasta 3 ¼ cups
2. Butter, or more to taste 1 tablespoon
3. Sliced fresh mushrooms 1 ½ cups
4. Onion, finely chopped 1
5. All-purpose flour 1 tablespoon
6. Milk 1 ¼ cups
7. Frozen peas ½ cup
8. Frozen sweet corn ½ cup
9. Tuna, drained 1 (7 ounce) can
10. Shredded Cheddar cheese ½ (8 ounce) package

How to cook deliciously - Tuna Noodle Casserole with Mushrooms

1 . Stage

Bring a large pot of lightly salted water to a boil. Add penne and cook, stirring occasionally, until tender yet firm to the bite, about 11 minutes.

2 . Stage

Preheat the oven to 400 degrees F (200 degrees C).

3 . Stage

Meanwhile, melt butter in a large skillet over medium heat and cook mushrooms and onion until softened, about 5 minutes. Stir in flour and cook for 1 minute. Slowly whisk in milk. Add peas and corn. Simmer, stirring occasionally, until sauce thickens, about 5 minutes. Add tuna and 1/2 of the Cheddar cheese and mix to combine.

4 . Stage

Drain penne and fold into the sauce. Spread in a large baking dish.

5 . Stage

Bake in the preheated oven until cheese is melted and the top is golden, 20 to 30 minutes.