Cut the jalapeno in half length-wise, remove seeds, and thinly slice.
Spread Greek Yogurt Jalapeno Ranch onto par-baked cauliflower crust in an even thin layer.
Top with an even thin layer of shredded mozzarella and sprinkle with about half of the pepper jack cheese. Evenly sprinkle on the sliced shallot and jalapeno, then top with bacon.
Add a final sprinkling of pepper jack cheese.
Bake for 10-15 minutes until the cheese is bubbly and beginning to brown.