Preheat oven to 350°.
In a large bowl, combine hash browns, Colby jack cheese, olive oil, salt, and pepper. Stir until combined.
Spray a muffin pan with nonstick cooking spray.
Use a large cookie scoop to measure out hash brown mixture and add to the muffin pan. Use the backside of the cookie scoop to push hash browns down and up the side of the muffin pan to create a nest shape.
Spray the hash browns with cooking spray and bake for 15 minutes.
While hash browns are baking, crumble breakfast sausage in a medium pan and cook until browned.
Remove hash browns from oven.
Place a tablespoon of cooked sausage crumbles into each hash brown cup.
Top each hash brown cup with an egg.
Sprinkle Pepper Jack cheese on top of each egg.
Bake for 13-15 minutes or until eggs are fully set.
Remove from oven and let sit in pan for 5 minutes before serving.
Optional: Top with picante sauce.