In the Base of the Smart Multi-Cooker combine noodles, salt and 3-4 cups water to the indent line in the Base. Microwave on high power 5 minutes.
Place Shielded Colander inside Base.
In a 4 cup Vent N Serve container combine tuna, onion, cheese, peas, cream of mushroom soup and salt and pepper. Place inside Shielded Colander, place Shielded Cover on and microwave for 5-7 minutes.
Meanwhile, toast panko bread crumbs in a small skillet with butter until golden brown.
Remove Vent N Serve container. Set aside.
Drain the egg noodles and place into Base of Smart Multi-Cooker. Add contents of Vent N Serve container to egg noodles, stir to combine.
Serve Tuna casserole and top with toasted bread crumbs.