I couldn't remember my mom's version but knew it had chow mien noodles, so I came up with this version instead.
chow mein noodles
cream of mushroom soup
chop suey vegetables, drained
tuna, packed in water, drained
1Combine ingredients. Place in 1 1/2 qt greased casserole. Bake at 325 for 40 minutes or until browned and bubbly.