My Way Spinach Bake

frozen, chopped spinach

butter

chopped onion

chopped celery

Kosher salt and freshly cracked black pepper ,

to 1/2 teaspoon of Cajun seasoning (like Slap Ya Mama), or to taste

Worcestershire sauce

hot sauce

garlic cheese roll substitute , Mexican style Velveeta, pepper jack, plain softened cream cheese, or your favorite choice of cheese

sour cream

canned, sliced mushrooms , drained, optional

About 4 passes of whole nutmeg over a microplane grater , optional

Grated cheddar or mozzarella cheese for topping, optional