Delicious French Dip Squares are a fun and tasty twist on the classic French dip sandwich. Picture tender roast beef and melted cheese piled high on square pieces of soft bread, all baked together to golden perfection. These squares are perfect for a party or a cozy night in, with a side of warm au jus for dipping that adds just the right touch of rich flavor.
I love making these squares because they’re easy to share and always disappear quickly—everyone loves dunking those cheesy, beefy bites into the flavorful broth. I usually prepare them ahead and pop them in the oven right before guests arrive, so the cheese is perfectly melted and the bread is delightfully crispy on the edges. It’s such a great way to enjoy the classic flavors of a French dip without the need for individual sandwiches.
The best part is how simple they are to eat—a perfect finger food without any mess. I like to serve these with a simple green salad or some crispy fries to round out the meal. Whether you’re feeding a crowd or just craving something satisfying, these French Dip Squares hit the spot every time with their juicy meat, gooey cheese, and irresistible dipping sauce.
Key Ingredients & Substitutions
Roast Beef: Thinly sliced roast beef gives these squares that classic French Dip flavor. If you can’t find deli-style, leftover roast or slow-cooked beef works great too.
Bread/Dough: French bread or pizza dough are perfect choices. Homemade dough is fun to make, but store-bought works well for convenience. You can also use a sturdy sandwich roll sliced in half.
Cheese: Swiss cheese melts beautifully here, offering a mild, creamy taste. Mixing in cheddar adds a sharper bite. Mozzarella can work if you want stretchier cheese but less flavor.
Butter & Seasonings: Butter brushed on top with garlic powder, onion flakes, and thyme adds extra flavor and a golden crust. Feel free to swap thyme for rosemary or Italian seasoning.
Au Jus: Beef broth with Worcestershire sauce makes the dipping sauce rich and savory. Soy sauce deepens flavor but can be skipped. You can thicken with cornstarch if you like your dip a bit heartier.
How Do I Get Perfectly Crispy Yet Tender French Dip Squares?
Baking these squares just right is key. You want the top golden and crispy, but the inside warm and melty without drying out.
- Brush the butter mixture evenly to get an even golden crust.
- Use a 9×13 pan so the bread bakes evenly.
- Bake at 350°F for about 20-25 minutes—check early to avoid overbaking.
- Let the squares cool briefly before cutting. This helps the cheese set slightly so the squares hold together better.
- Serve warm with the freshly made au jus for that perfect dip.
With these tips, you’ll have squares that balance crispy edges and soft insides that everyone will love!
Equipment You’ll Need
- 9×13 inch baking pan – I find this size perfect for even baking and easy slicing.
- Rolling pin (if using homemade dough) – helps roll out the dough evenly.
- Small mixing bowls – for melting butter and mixing seasonings.
- Pastry brush – to evenly coat the top with butter mixture for a golden finish.
- Small saucepan – to prepare the au jus dipping sauce.
- Sharp knife – for cleanly slicing the baked squares, making serving easier.
Flavor Variations & Add-Ins
- Replace roast beef with cooked chicken or turkey for a different protein flavor.
- Mix in sautéed mushrooms or caramelized onions before adding cheese for extra richness.
- Use a blend of cheeses like provolone or mozzarella for a different melt and taste.
- Add a sprinkle of red pepper flakes or Italian herbs to boost flavor.
Delicious French Dip Squares
Ingredients You’ll Need:
Main Ingredients:
- 1 pound thinly sliced roast beef (cooked, deli-style or leftover roast)
- 1 loaf French bread or French bread dough (homemade or store-bought pizza dough can also be used)
- 2 cups shredded Swiss cheese or a mix of Swiss and cheddar
- 1/2 cup butter, melted
- 1 teaspoon garlic powder
- 1 teaspoon dried onion flakes
- 1/2 teaspoon dried thyme (optional)
- Fresh parsley, chopped (for garnish)
For the Au Jus Dip:
- 2 cups beef broth or consommé
- 1 tablespoon Worcestershire sauce
- 1 teaspoon soy sauce (optional for deeper flavor)
- 1/2 teaspoon garlic powder
- Salt and pepper to taste
- 1 teaspoon cornstarch mixed with 1 tablespoon cold water (optional, to thicken)
How Much Time Will You Need?
This recipe takes about 15 minutes of prep time and 20-25 minutes of baking. Preparing the au jus takes about 10 minutes while the squares bake. Let the squares cool for a few minutes before slicing and serving.
Step-by-Step Instructions:
1. Prepare the Bread or Dough:
Preheat your oven to 350°F (175°C). If you’re using fresh French bread dough or pizza dough, roll it out to fit a 9×13 inch baking pan. For pre-baked bread, slice the loaf horizontally into two long halves to fit in the pan.
2. Assemble the Squares:
Place the bottom layer of bread or dough in the pan. Spread the sliced roast beef evenly over this layer. Then, sprinkle the shredded cheese generously over the beef. Cover everything with the top layer of bread or dough.
3. Add Butter and Seasonings:
In a small bowl, combine the melted butter with garlic powder, dried onion flakes, and thyme (if using). Use a pastry brush to spread this mixture evenly over the top layer of bread or dough.
4. Bake:
Bake in your preheated oven for 20-25 minutes, or until the top is golden brown and the cheese is melted and bubbly.
5. Make the Au Jus Dipping Sauce:
While your squares are baking, pour the beef broth, Worcestershire sauce, soy sauce (if using), and garlic powder into a small saucepan. Heat over medium heat until it simmers. If you prefer a thicker sauce, stir in the cornstarch and water mixture and cook until it thickens. Season with salt and pepper to taste.
6. Serve:
When the squares are done, remove them from the oven and let cool for a few minutes. Cut into squares and sprinkle with chopped fresh parsley. Serve warm alongside the au jus dipping sauce.
Enjoy your delicious French Dip Squares with tender roast beef, melted cheese, and crispy buttery bread dipped into savory, flavorful au jus!
Can I Use Frozen Roast Beef for This Recipe?
Yes! Just make sure the roast beef is fully thawed before assembling. Thaw it overnight in the fridge or use the cold water method for quicker thawing to keep the texture tender.
Can I Make French Dip Squares Ahead of Time?
Absolutely! Assemble the squares and cover them tightly with foil or plastic wrap, then refrigerate for up to 24 hours. When ready, bake as instructed, adding a few extra minutes if baking from cold.
How Should I Store Leftovers?
Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave until warmed through, and serve with fresh au jus for the best flavor.
Can I Substitute the Cheese?
Yes, Swiss cheese works best, but you can substitute with provolone, mozzarella, or even a mix of cheddar for a sharper taste. Just choose cheeses that melt well for that gooey texture.