Keto Salisbury Steak with Mashed Cauliflower

Ingredients

• 3 cups cauliflower florets
• 1 tablespoon butter
• 2 to 3 tablespoons unsweetened almond milk
• 12 ounces ground beef ((80% lean) )
• 1/4 cup almond flour
• 2 teaspoons fresh chopped parsley
• 2 teaspoons Worcestershire sauce
• 1/4 teaspoon onion powder
• 1/4 teaspoon garlic powder
• 1 tablespoon olive oil
• 1 1/2 cups sliced mushrooms
• 1/4 cup beef broth
• 2 tablespoons sour cream