Gather the diced potatoes, bell pepper, and onion on a large pan. Whisk eggs in a medium-sized bowl. Grab the shredded cheese, salt, and pepper. Bring all the ingredients outside. Preheat Blackstone griddle to medium-low heat.
Lightly oil the Blackstone griddle. Add diced potatoes to the one side of the Blackstone griddle. Cook the potatoes for about 6-8 minutes before adding the ground sausage to the other side.
Add the sausage and cook the until browned. Continue to cook the potatoes, flipping occasionally until crispy on all sides. This will take an additional 6-8 minutes. If your Blackstone has a lid, you can add water to the griddle and close the lid to help steam the potatoes.
Move the potatoes and sausage to one side of the Blackstone. Add the peppers and onions to the griddle and cook until slightly softened, about 2-3 minutes.
Mix all the ingredients on the Blackstone together and push to one side. Finally, add the whisked eggs and use a spatula to quickly move them around on the griddle. They will cook extremely fast; it will take less than 30 seconds for the eggs to be cooked.
Stir the eggs in with the rest of the scramble. Season to taste with salt and pepper. Add the shredded cheese and let sit for a few minutes to melt.
Remove the scramble from the Blackstone griddle and serve while it's hot. Enjoy!!