1Cook spinach and broccoli in a steamer basket. Drain in a colander for at least one hour. Mix in large bowl broccoli, spinach, sour cream, cheese and onion soup mix. Mix well. Spread in a glass baking dish approximately 9 x9-inches. Bake at 350 degrees in a preheated oven for 30 minutes or until heated through and lightly brown on top.