Preheat oven to 180 °C (350 °F) and brush a nonstick 12-cup muffin pan with butter or oil.
In a large skillet, heat olive oil over medium-high heat. Sweat the onion for 2 minutes, stirring occasionally. Add diced zucchini and red pepper. Cook 1 to 2 minutes, stirring frequently. Add diced Pink Pepper Salametti and cook 2 minutes. Season with pepper and set aside.
In a bowl, beat eggs with milk. Add herbs. Season with pepper and mix well.
Divide the vegetable mixture up into each cup. Pour the egg mixture on top. Garnish with grated cheddar.
Bake in oven for 20 to 25 minutes or until egg mixture puffs and is set.
Let cool and then use a knife to loosen the frittatas from muffin cups. Serve with a green salad.