In a medium bowl, whisk together the eggs and milk.
2. Step
Heat the olive oil in an oven-safe pan over medium-low heat. When the oil is shimmering, add the kale, bell pepper, salt, and pepper. Sauté until the pepper is tender, about 10 minutes.
3. Step
Pour the egg mixture into the pan and sprinkle the feta cheese on top. Continue to cook, pushing in the edges occasionally to make sure all the egg cooks evenly. Remove from the heat.
4. Step
Place the pan in the oven and broil on high until the top is lightly browned, about 4 minutes.
