Crockpot Patty Melt Soup for an Easy Weeknight Dinner Tips, FAQ & printable recipe

Tips for success

For a deeper flavor, you can briefly sauté the onions in a separate pan before adding them to the slow cooker, though this is optional. If you prefer a more pronounced onion flavor, try using a mix of yellow and white onions. The key to this recipe is the slow, gentle cooking process, so avoid the temptation to cook on high heat, which can cause the dairy in the soup to separate or the beef to toughen unnecessarily.

If you want to add a bit of texture, consider serving this soup with a side of toasted rye bread or croutons, which provides a satisfying crunch that contrasts beautifully with the creamy consistency of the soup.

Ensure that any bread used is fresh and lightly toasted to mimic the classic patty melt experience. This simple addition elevates the meal and makes it feel more like a complete, restaurant-style dinner that is easy to enjoy at home.

Variations

• Spicy Patty Melt Soup: Stir in a tablespoon of chopped pickled jalapeños or a dash of hot sauce during the last hour of cooking to add a bright, spicy kick to the creamy broth.
• Mushroom Lover's Soup: Add 8 ounces of sliced cremini mushrooms along with the onions for extra earthiness and a more robust mushroom flavor that pairs perfectly with the Swiss cheese.

Storage and make-ahead

Fridge

Store in an airtight container in the refrigerator for up to 3 days. Cool to room temperature for no more than 2 hours before refrigerating.

Freezer

The soup can be frozen in a freezer-safe container for up to 2 months. Thaw in the refrigerator overnight before reheating.

Reheat

Reheat gently on the stovetop over low heat until steaming, stirring frequently to ensure the cheese and broth remain perfectly combined.

Allow any leftover soup to cool to room temperature for no more than two hours before transferring it to an airtight container. Properly sealed, the soup will maintain its quality in the refrigerator for up to three days.

When ready to eat again, reheat gently on the stovetop over low heat, stirring occasionally to maintain the creamy texture and prevent the cheese from separating or scorching on the bottom of the pan.

This soup is an excellent candidate for making ahead of time as the flavors tend to meld and deepen after resting in the refrigerator. You can prepare the base ingredients and store them, but for the best results, cook the soup as directed and store the finished product.

Simply reheat individual portions as needed throughout the week, making it a convenient option for meal planning. Ensure it is cooled properly before storing to maintain optimal food safety.

Serving ideas

Serve the soup in wide, shallow bowls to showcase the hearty beef and onion mixture. A garnish of fresh chives or a dash of black pepper can add a pop of color and a slight bite to balance the richness of the Swiss cheese. Because this is a hearty dish, it pairs well with a light side salad or steamed green vegetables, which provide a fresh, crisp contrast to the savory, creamy nature of the main soup.

For an authentic diner feel, offer a side of pickles or a small dish of mustard to accompany the bowl. The acidity of the pickles cuts through the richness of the beef and cheese, providing a refreshing palate cleanser between bites.

If you are serving this for a family dinner, set out a basket of crusty bread or warm rolls, allowing everyone to soak up every last drop of the flavorful, cheesy broth from their bowls.

Frequently asked questions

Recipe card

Crockpot Patty Melt Soup for an Easy Weeknight Dinner

Prep 10 minCook 4 hTotal 4 h 10 minServes 6

Ingredients

• 1 lb ground beef
• 2 cups yellow onions, thinly sliced
• 8 oz Swiss cheese, shredded
• 2 cups beef broth
• 1 can (10.5 oz) condensed cream of mushroom soup

Instructions

1. Place the raw ground beef into the slow cooker, crumbling it into small pieces as you add it. Scatter the thinly sliced yellow onions evenly over the beef.
2. In a separate glass pitcher, whisk together the beef broth and the condensed cream of mushroom soup until smooth. Pour this mixture over the beef and onions in the slow cooker. Sprinkle the shredded Swiss cheese over the top of the liquid.
3. Cover the slow cooker and cook on low for 4 hours. Once cooked, ensure the ground beef reaches a safe internal temperature of 160°F (71°C). Stir the soup gently to incorporate the melted cheese before serving in shallow bowls.

Contains: milk, gluten

Estimated nutrition per serving

Calories

420

Protein

28.5 g

Carbohydrates

12 g

Fat

29 g

Fiber

1.5 g

Sugar

3 g

Sodium

850 mg

Automatic estimate from the ingredient list, not laboratory-verified.