Preheat oven to 400F and spray mini with cooking spray.
Grate potatoes and using a cheesecloth or clean dish towel ring out the potatoes to remove any excess water. This will help them get nice and crispy.
Add olive oil to a skillet and add potatoes. Cook, stirring often for about 5 min on medium to high heat. This will just give the potatoes a quick sear before baking. Let cook slightly enough to touch, but potatoes are still warm.
Grate Marble Cheddar and mince shallot. Add to a bowl and season with salt and pepper.
Add a tablespoon sized scoop of potato mixture and add to each cup. Using the end of a rolling pin, press in the middle to create a little nest shape. Use your hand to shape and create an even layer of potato. Repeat with remaining nests. Bake for 20-25 min, rotating halfway through.
Meanwhile make the base by blending cheddar, cream cheese, sour cream, lemon, salt and pepper in a food processor. Season to taste.
Add cubed pancetta to a skillet and cook for about 7 minutes, stirring often. Toss peas in on the last minute.
When potato nests are done, remove from tin and transfer to a plate. Add a little scoop of the base to the bottom, and top with peas (like little eggs) and pancetta. Enjoy!