This is mostly going from memory, and I only made this once, so it might not be 100% accurate.
Stuffed ZucchiniGiant Zuccchini(s)
Onion
Bell Pepper
Mushrooms
Ground Beef
Tomatoes
Cheddar Cheese
Salt & Pepper
Garlic Powder
Minced Onions
Italian Seasoning
Basil
Vegetable Oil
*pre-heat oven - 375
o*

First I hollowed out my halves, saving the scooped out zucchini.
depending on the size of the zucchini,
leave about 1/2 inch of "meat" on the sides and bottom(mostly so that it holds it's shape, but also so there is some left to scoop out when eating)
then I chopped up the scooped out zucchini and set it aside.

lightly grease a baking pan or dish and position your shelled zucchini halves so that they are propped up by each other and/or the walls of the dish. don't want them to tip over
*alternatively, shave a small amount off the bottom of every zucchini shell to make a flat bottom*
Place hollowed out zucchini halves in oven for about 20 or so minutes to soften up the "meat" on the sides. while that cooks, you move onto the next step

take some ground beef and prepare it like you are making a meaty spaghetti sauce
(seasoned with salt, pepper, garlic powder, minced and chopped onion, bell pepper, mushrooms, Italian seasoning & basil *or whatever you like best*)
-When the meat is about 80% done add some chopped zucchini to the mix and cook in mixture till meat is done.
Drain mixture, and add your spaghetti sauce (I used Ragu) and season to liking.
pour meat sauce into the zucchini shells.
top with cheese (I used shredded cheddar) and place into the oven @ about 375
o for about 30-35 minutes

about 20 minutes into the bake, I decided to place sliced tomatoes with a sprinkle of basil
ontop of one of the stuffed zucchinis

serve in slices, scooping the insides out till you reach the inside of the outer skin.
in the end it was quite tasty and there was enough zucchini "meat" left over that I gave it to my mom and she made some delicious Zucchini bread a few days later (and there was still more "meat" left over after that too).