Hearty Tuna Casserole

1 . Stage

Preheat the oven to 350 degrees F (175 degrees C). Spray a 2-quart casserole dish with cooking spray.

2 . Stage

Fill a large pot with lightly salted water and bring to a rapid boil. Cook egg noodles at a boil until tender yet firm to the bite, 7 to 9 minutes. Drain and transfer to a large mixing bowl.

3 . Stage

Add tuna, celery, and green onions to the noodles. Stir in mayonnaise, sour cream, mustard, thyme, and salt until well combined.

4 . Stage

Spoon 1/2 of the noodle mixture into the prepared casserole dish, then layer 1/2 of the zucchini slices over top. Repeat layers once more, then sprinkle Monterey Jack cheese over the entire casserole.

5 . Stage

Bake in the preheated oven until hot and bubbly, about 30 minutes.

6 . Stage

Remove from the oven and sprinkle with chopped tomato before serving.