Beef Stroganoff, a Dutch Oven Recipe

Ingredients

• 1½ lbs Sirloin, cut into ½” strips
• 3 tbs Butter
• 3 Medium onions, sliced
• ½ tsp Kosher salt
• ¼ tsp black pepper
• ½ teaspoon thyme
• 1 can (8oz.) tomato sauce
• 1 cup dry red wine
• 2 Medium tomatoes, wedged
• 1 lb mushrooms, sliced
• 1 cup sour cream