Heat the oven to 350°F. If your muffin pan isn’t silicone, give each cup a light coat of butter or cooking spray.
Press one biscuit round into each of 8 muffin cups, pushing it up the sides to make a little cup. Keep the other 8 biscuits for the tops.
Crack the eggs into a bowl, add a pinch of salt and pepper, and whisk until smooth.
Pour a little egg into each biscuit cup, filling them about halfway so there’s room for the toppings.
Add a few pieces of bacon, a small spoonful of pesto and a square of pepper jack to each cup.
Flatten each remaining biscuit with your hands, lay it over a filled cup and pinch the edges to seal everything inside.
Bake for 18 to 22 minutes, until the tops are golden brown and the eggs are set. Let them cool for a few minutes, then pop them out.