Delicious French Dip Squares are a fun twist on the classic French dip sandwich, packed with tender roast beef, melted cheese, and a soft, golden-baked bread crust. These squares come with a side of savory au jus sauce for dipping, making each bite wonderfully juicy and flavorful. They’re perfect for sharing at parties or enjoying as a hearty snack.
I love making these squares because they’re easy to prepare and always a big hit with family and friends. The combination of warm beef and gooey cheese dipped into that rich au jus sauce feels so comforting and satisfying. I usually make a big batch so everyone can grab a piece and dip away!
My favorite way to serve French Dip Squares is fresh from the oven, straight to the table with little bowls of the au jus on the side. It’s such a simple meal, but it never fails to bring smiles and a little bit of cozy joy with it. Plus, leftovers are just as tasty reheated, which makes them a perfect choice for busy days.
Key Ingredients & Substitutions
Roast Beef: Thinly sliced roast beef is key for that tender, meaty bite. If you can’t find deli-style, leftover roast or even cooked steak sliced thin works great. For a leaner option, try turkey or chicken.
Bread: White sandwich bread is soft and holds the fillings well. You can swap with whole wheat or sourdough for more flavor and texture.
Cheese: Provolone melts nicely and adds a mild, creamy flavor. If you want a sharper taste, Swiss or mozzarella can be tasty alternatives. Cheddar on top adds a golden crust and sharpness.
Butter & Herbs: Butter mixed with parsley, garlic powder, onion powder, and thyme gives the bread that flavorful crust. If you prefer, olive oil can replace butter for a lighter version.
Au Jus Sauce: Beef broth and Worcestershire sauce create a simple but flavorful dip. If short on time, store-bought beef broth plus a dash of soy sauce or steak sauce can work well too.
How Do You Get the Crunchy, Cheesy Top on French Dip Squares?
The crispy, cheesy topping is what makes these squares so special. Here’s how to get it just right:
- Brush with Butter Mixture: Coating the bread with melted butter mixed with herbs adds flavor and helps the top crisp in the oven.
- Add Shredded Cheddar Cheese: Sprinkle the cheddar generously so it melts into a bubbly golden crust.
- Bake at 350°F for 15-20 Minutes: This melts the cheese and toasts the bread without burning. Keep an eye on it so the edges don’t get too dark.
- Tip: Using a baking sheet lined with parchment paper makes cleanup easier and helps the bottoms stay soft while the tops crisp.
Equipment You’ll Need
- Baking sheet or casserole dish – I like it because it holds the sandwiches and bakes evenly.
- Small mixing bowl – for mixing the herb butter so everything is well combined.
- Pastry brush – helps evenly coat the bread with butter and herbs for flavor and crispiness.
- Knife and cutting board – to cut the baked squares into pieces easily and neatly.
- Small saucepan – for warming the au jus sauce so it’s ready for dipping.
Flavor Variations & Add-Ins
- Cheese options: Swap provolone for Swiss, mozzarella, or pepper jack for different cheese flavors.
- Protein choices: Use cooked chicken, turkey, or even veggie slices like mushrooms and peppers for variety.
- Extra toppings: Add sautéed onions or caramelized mushrooms inside before baking for more flavor.
- Spice it up: Mix in some crushed red pepper flakes or a dash of hot sauce to give your squares a little kick.
Delicious French Dip Squares
Ingredients You’ll Need:
Main Ingredients:
- 1 lb thinly sliced roast beef (warm or deli-style)
- 8 slices of white sandwich bread, crusts removed
- 8 slices provolone cheese
- 1 cup shredded cheddar cheese
- 4 tablespoons butter, melted
- 1 tablespoon dried parsley flakes
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1/2 teaspoon dried thyme
- Salt and pepper to taste
For the Au Jus Dipping Sauce:
- 2 cups beef broth
- 1 tablespoon Worcestershire sauce
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- Salt and pepper to taste
How Much Time Will You Need?
This recipe takes about 10 minutes to prepare and around 15-20 minutes to bake. While the squares bake, you can quickly prepare the au jus sauce. Overall, expect roughly 30 minutes from start to finish!
Step-by-Step Instructions:
1. Prepare Your Oven and Bread:
Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or lightly grease a baking dish. In a small bowl, mix melted butter with dried parsley, garlic powder, onion powder, dried thyme, salt, and pepper. Brush one side of each bread slice generously with this butter mixture.
2. Assemble the Sandwiches:
Place 4 bread slices buttered side down on the baking sheet. Spread the roast beef evenly over these slices, then top each with a slice of provolone cheese. Cover with the remaining 4 bread slices, buttered side up. Brush the tops again with any remaining butter mixture. Finally, sprinkle shredded cheddar cheese evenly over the tops.
3. Bake and Prepare the Au Jus Sauce:
Bake the sandwiches for about 15-20 minutes, or until the cheddar cheese melts, bubbles, and the bread is golden brown. While baking, combine beef broth, Worcestershire sauce, garlic powder, onion powder, salt, and pepper in a small saucepan. Warm over medium heat until gently simmering.
4. Serve and Enjoy:
Remove the sandwiches from the oven and let them cool for a few minutes. Cut into squares, and serve warm alongside bowls of the hot au jus sauce for dipping. Enjoy these crispy, cheesy beef squares perfect for sharing or a tasty snack!
Can I Use Frozen Roast Beef for This Recipe?
Yes, you can use frozen roast beef, but make sure to thaw it completely before assembling the squares. Thaw it overnight in the fridge or use the defrost setting on your microwave to ensure it warms evenly and stays tender.
Can I Make French Dip Squares Ahead of Time?
Absolutely! Assemble the sandwiches but don’t bake them. Cover and refrigerate for up to 24 hours, then bake fresh when ready. This helps save time and keeps the bread from getting soggy.
How Should I Store Leftovers?
Store leftover squares in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F for 10-15 minutes to keep the bread crispy, or microwave for a quicker option but expect softer bread.
Can I Use Different Cheeses or Bread?
Definitely! Swiss, mozzarella, or pepper jack cheese are great alternatives. For bread, whole wheat, sourdough, or a crusty French bread will work well and add different textures and flavors.