Decadent Spinach Casserole

3 10-ounce packages frozen chopped spinach, thawed and with excess water squeezed out
1 cup sour cream
1 envelope dry onion soup mix
low carb bread crumbs (optional)

Thaw spinach and press out excess water.
Mix with sour cream and dry onion soup mix.
Sprinkle with low carb bread crumbs, if desired.
Bake at 325 degrees for 20-25 minutes. Serves 8.
Note: Recipe can be doubled or tripled for a crowd. Variation: Add a can of drained, chopped water chestnuts for a nice crunch.