Step 1

Preheat the oven to 375ºF (190°C). Spray a 9×13-inch baking dish with cooking spray and set aside.

Step 2

Boil the egg noodles in salted water until al dente. Drain, return noodles to the empty pot and set aside off the heat.

Step 3

Meanwhile, in a medium skillet over medium-high heat melt the butter and add the chopped ham and onion. Cook, stirring frequently, until the onion has softened, about 4 to 5 minutes. Remove from the heat and set aside.

Step 4

To the pot of drained cooked egg noodles stir in the onion and ham, cream or milk, eggs, seasonings, and half the grated cheese. Pour the mixture into the prepared baking dish, cover with foil and bake for 30 minutes.

Step 5

Remove from the oven, top with the remaining grated cheese and return to the oven, uncovered, for another 15 minutes until melted and bubbly.

Step 6

Allow the casserole to set and cool for about 10 to 15 minutes before cutting into it to serve.