Spinach Ham Crepes

Dottie's Crepes (use 4)
Filling:
1 Tbsp butter
1/4 cup onion, chopped
1/2 pkg fresh spinach
1/2 cup cheddar, shredded
1/2 tbsp Dijon mustard
dash salt & nutmeg

Sauté onion in butter until soft. Add spinach and cook until moisture evaporated. Stir in remaining and heat. Fill crepes and roll up.