In a large skillet over medium-high heat, add the bourbon and bring to a simmer. Simmer for 2 minutes, or until reduced by half.
Add the olive oil and onion and cook for 5 minutes, or until softened.
Add the salt, pepper, squash, and sage and cook for 8 minutes, stirring occasionally.
Create four wells in the hash and crack an egg into each well. Cover the skillet and cook for 5 minutes, or until the eggs are cooked to your desired doneness.
Sprinkle with Parmesan cheese and serve.
Interesting Facts
Bourbon is a type of whiskey that originated in Kentucky.
Butternut squash is a type of winter squash that is high in vitamins A and C.
Sage is an herb that has many medicinal properties.