Smoky Sausage, Potato & Parmesan Frittata Bake: The Thermodynamics of Starch Emulsification and Egg Custard Coagulation

Preheat your oven to $180^\circ\text{C}$ ($350^\circ\text{F}$). Heat the olive oil or butter in a large, oven-safe skillet over medium-high heat. Add the diced potatoes and cook for 8 to 10 minutes, tossing regularly until they are light golden on the outside and tender when pierced with a fork.

Add the sliced hunting sausages to the skillet with the potatoes. Fry for 3 to 4 minutes until the sausage rounds render their savory fats and crisp at the edges. Toss in the chopped spring onions and diced tomatoes, cooking for another 2 minutes to soften the vegetables and evaporate surface juices.

In a medium mixing bowl, whisk the 4 eggs, sour cream, salt, black pepper, and optional smoked paprika together until completely smooth and unified. This mixture creates the creamy custard that holds the bake together.

Spread the potato and sausage mixture evenly across the bottom of the skillet. Pour the egg and sour cream custard evenly over the ingredients, gently shaking the pan so the liquid fills every gap. Sprinkle the finely grated Parmesan cheese evenly over the top.

Transfer the skillet into the oven and bake for 20 to 25 minutes, or until the center is set and the Parmesan top turns a light golden-brown. Remove carefully from the oven, let the bake rest f-l-koujina (in the kitchen) for 5 minutes f-l-pan (in the skillet) to allow the custard to firm up, then slice into wedges and serve warm f-l-gass3a (at the dinner table).