You can roast your spaghetti squash ahead of time if you wish, which I usually do.
Take your squash that has been cut with all the seeds. scooped out, drizzle with olive oil, salt and pepper. Place the squash cut side down on parchment paper and roast in an oven at 360 degrees until a knife goes through with a little resistance. The key is you don't want the squash overcooked, it can become mushy and watery, which you don't want. I like the squash cooked al'dente.
Mine took about 25 minutes, but keep checking it all depends on the size of your squash.
Then let the squash cool down flake the inside all over to get your spaghetti strands.
Place the strands in a bowl and season it with a handful of grated parmesan, salt, pepper and a drizzle of olive oil.
Place another sheet of parchment on a baking sheet, turn your oven up to 425F.
Grab a handful of the spaghetti squash and place it on the parchment forming a circle with a hole in the center. Make sure the edges are high enough to hold in the egg, but the grated mozzarella will help with that as well.
After you have your nests made, sprinkle each center with the grated mozzarella cheese, then place the cracked egg on top.
Arrange the toppings of your choice right on top of the spaghetti nests.
Drizzle the tops with olive oil and sprinkle each with grated parmesan cheese.
Carefully place the sheet pan into the hot 425F oven and bake til the whites are set, around 15 minutes, but keep checking.
Remove from the oven. and garnish with more parmesan and chopped parsley.
Enjoy!
Recipe by Proud Italian Cook at https://www.prouditaliancook.com/2024/01/spaghetti-squash-egg-in-a-hole.html