Preheat oven to 425 degrees F and grease a 9x13 inch baking dish with cooking spray. Set aside.
Melt butter in a large, straight-edged sauté pan or stockpot.
Add in onion, celery, carrots, garlic, salt, and pepper. Cook until the veggies are tender.
Sprinkle on flour and cook for 1 minute, stirring the whole time.
Slowly whisk in chicken broth, milk, and vinegar.
Bring to a simmer.
Once simmering, stir in mushrooms and simmer for another 5 minutes or until the mixture starts to thicken.
Remove from heat and stir in noodles, peas, tuna, and cheddar cheese.
Pour into prepared pan and sprinkle with panko and parmesan.
Spray with cooking spray then bake for 15-20 minutes in preheated oven or until cheese is bubbly.
Let sit for about 10 minutes then serve and enjoy!
Take 5 seconds to . We greatly appreciate it!