Step 1

Grate the squash and onion with your cheese grater (or dice them nice and small).

Step 2

Spray a 9x9-inch baking dish with cooking spray and preheat the oven to 375 degrees F.

Step 3

In a medium skillet, cook the bacon until tender crisp. Remove the bacon from the pan and lay it on paper towels to help absorb extra grease. Pour out the extra bacon grease from pan and return the pan to the stove (it will still have a layer of grease on the bottom since you haven't cleaned it).

Step 4

Add the grated squash and onion to the pan, and cook over medium-high heat until the vegetables are tender and any cooking liquid that they have released has cooked off.

Step 5

While the veggies are cooking, break your eggs into a bowl, add the milk and salt and pepper, and beat with a fork to combine well.

Step 6

Place the cooked vegetables in the bottom of the prepared baking dish. Add the spinach. Add the cheese. Crumble the cooked bacon over the top of the cheese. Pour the egg mixture over everything in the dish. Bake for 25 to 30 minutes, until the center of the dish is set and no longer jiggles. Let the dish cool for 3 to 5 minutes before serving hot.