Using a heavy, sharp knife, carefully cut the spaghetti squash lengthwise through the center to create to long “boats” of squash. This is the most difficult part of the recipe, the knife can “stick”, so wiggle to remove.
Using a metal spoon, scrape out seeds and discard. Place half of the squash face down in an 8×8 glass baking dish. Fill with water about 1/4 “ deep.
Cover with wax paper and microwave on high for about 4 minutes, rotate and cook on high for another 4 minutes. Turn and cook again for 4 more minutes (a total of 12 minutes) until squash is soft and pulp is darker in color and cooked through. Repeat with the other half of the squash.
Meanwhile, heat the olive oil on medium-high heat. Add zucchini, pepper, onion, and seasonings. Stir and cook until vegetables are lightly browned and softened.
Pour in the spaghetti sauce and heat through. Taste and adjust seasonings as desired.
Remove the spaghetti squash halves. Allow them to cool until you can handle them or use oven mitts. Scrape out the pulp of the squash using a fork. It will come out in strands… just like spaghetti! Leave just enough of the squash intact so that the shell halves will hold their shape. Place the shells in a large baking dish.
Add the strands of spaghetti squash to the vegetable mixture and stir to blend.
Using a large spoon, fill each of the squash shell halves with the vegetable/squash mixture.
Sprinkle to cover the top liberally with mozzarella and top with cheddar cheese.
Bake at 350°F for approximately 15 minutes or until cheese is lightly browned and melted and mixture is bubbly and heated through.
Recipe by Just a Smidgen at https://justasmidgen.com/2011/11/23/random-thoughts-acts-of-kindness-and-a-spaghetti-squash/