Just like a cold spinach salad with hard boiled eggs, I have eggs with my sauteed spinach too! I usually use egg whites that I microwave tho. (it REALLY cuts down the prep time!) I substitute olive oil for vegetable oil as well. And I'm not so into the red pepper so I usually don't use it!
Here's a recipe from Cooking Light that's really quite good:
Sauteed Spinach with Chopped Egg