Green Eggs, No Ham

5 Eggs
1 Cup chopped frozen spinach, thawed
1 Teaspoon Grey Poupon mustard
1/4 Cup Milk Salt & Pepper to taste
1/4 cup grated swiss cheese

Preheat oven to 375 degrees. Use nonstick spray on 8" casserole dish. 
Mix eggs with fork. Add all other ingredients except cheese. 
Pour into casserole dish, top with grated swiss cheese.
Cook for 30 minutes or until set. 
Serve with chopped tomatoes as garnish.