Acorn Squash Gratin

Name: Acorn Squash Gratin
Prep time: 25 min
Cook time: 1 h 55 min
Total time: 1 h 55 min
Yield: 8 portions
Ingredients: non-stick spray oil; 64 oz acorn squash; 3 oz Parmesan cheese; 3 oz Gruyère cheese; 1 oz all-purpose flour; 1 oz unsalted butter; 8 oz yellow onions; 3 garlic cloves; ½ tsp salt; ¼ tsp ground black pepper; &frac18; tsp ground nutmeg; 8 oz baby spinach; 4 oz cream cheese; 3 oz heavy whipping cream; 1 red bell pepper; pumpkin seeds