Spinach Casserole

Ingredients

• 1 lb (.5 kg). ground beef
• 1 small onion, chopped
• 1 tsp (5 ml) oregano
• 1 tsp (5 ml) garlic salt
• 1 10-1/2 oz (294 grm). can cream of mushroom soup
• 2 10 oz (280 grm). pkgs frozen spinach, thawed
• 1/2 cup (125 ml) sour cream
• 1/2 cup (125 ml) cooked rice
• 12 oz (336 grm). Monterey Jack cheese, shredded
• 1 (8 ct.) package refrigerated crescent roll dough
• 3 oz (84 grm). cream cheese (added to spinach mixture0, optional