Drain tofu noodles. Using a scissors, cut them into 1-2" pieces. Parboil for 2-3 minutes to remove the "Shirataki" aroma from the noodles.
Preheat oven to 375°F Spray a small casserole dish with non-stick cooking spray. Mix the noodles, soup, tuna, peas, and seasonings together in the dish. Add breadcrumbs to top if using, and sprinkle with a bit more black pepper.
Bake, uncovered, for about 30 minutes, until casserole is hot and bubbly.
If you are adding cheese to the top, sprinkle it on about 20 minutes into baking.