Beat together the eggs and salt in a small mixing bowl until homogenous and frothy.
Add the olive oil to a medium nonstick skillet, heat for about 1 minute over medium-high heat, then add the red pepper flakes and spinach and cook until the spinach is almost wilted, stirring occasionally. Add the sun-dried tomatoes and bell pepper, and cook for 30 more seconds, stirring occasionally. Add the egg and cook, stirring constantly for 30 seconds to 1 minute or until the egg looks not quite soft-cooked. (The residual heat from the skillet will continue to cook the eggs.) Remove from the heat, add the parmesan, stir to combine, and transfer to a plate. Finish with pepper and a sprinkling of parsley. Serve with toast.