In a large skillet, heat the olive oil over medium-high heat. Add the potatoes and bell pepper and cook, stirring occasionally, until the potatoes are tender, about 10 minutes.
Add the onion and cook, stirring occasionally, until the onion is tender, about 5 minutes.
In a medium bowl, whisk together the eggs, milk, salt, and pepper. Pour the egg mixture over the potato and pepper mixture and stir to combine.
Reduce the heat to low and cook, stirring occasionally, until the eggs are cooked through, about 5 minutes.
Serve the frittata warm.
Interesting Facts
Frittatas are a type of Italian omelette that are cooked slowly over low heat.
Frittatas are a great way to use up leftover vegetables and are a great way to add extra nutrition to your diet.
The word “frittata” is derived from the Italian word “friggere” which means “to fry”.