Add diced pancetta and potatoes. Season with kosher salt and black pepper.
Cook, shaking the pan often, until potatoes are golden and pancetta is rendered and crisp, about 8–10 minutes.
Add the Aromatics
Add shallot, cherry tomatoes, and most of the scallions.
Sauté until shallot is golden and tomatoes are softened, about 2–3 minutes.
Taste and adjust seasoning. Remove from heat.
Poach the Eggs
While hash finishes, poach eggs to your preferred doneness (soft yolks are best here).
Plate & Serve
Divide hash between plates.
Top each with a poached egg.
Garnish with remaining scallions and a pinch of flaky salt if desired.
Notes
Storage: the hash keeps in an airtight container in the fridge for 3-4 days and reheats well in a hot skillet. Poach the eggs fresh right before serving, they don't hold or reheat well once cooked.