3-Ingredient Beef Brie Crostini Recipe

Looking for an easy beef appetizer that feels elegant without requiring a long ingredient list? These 3-Ingredient Beef Brie Crostini combine crisp baguette slices, tender roast beef, and creamy melted Brie for a rich, savory bite that’s ready in about 20 minutes.

This oven-baked beef crostini recipe is perfect for holiday parties, family gatherings, dinner parties, game-day snacks, or a simple weekend appetizer. The Brie melts beautifully over the warm roast beef while the baguette becomes crisp around the edges, creating an irresistible combination of textures.

Why You’ll Love These Beef Brie Crostini

• Only 3 main ingredients: Simple, affordable, and easy to prepare.
• Quick appetizer: Ready in roughly 20 minutes from start to finish.
• Minimal cleanup: Everything bakes together in one dish.
• Elegant presentation: Perfect for entertaining without complicated preparation.
• Rich and satisfying: Creamy Brie and savory roast beef make every bite flavorful.
• Easy to customize: Use sourdough, multigrain baguette, or your favorite roast beef.
• Great for entertaining: An excellent appetizer for holidays, parties, potlucks, and family gatherings.

Ingredients

For the Crostini

• 1 crusty baguette, about 12–14 inches, sliced into ½-inch rounds
• 8 ounces thinly sliced roast beef, deli-style or leftover cooked roast beef
• 8 ounces Brie cheese, rind on, sliced or cut into small pieces

How to Make 3-Ingredient Beef Brie Crostini

1. Prepare the Oven

Preheat your oven to 400°F (200°C). Lightly grease a 9×13-inch baking dish to help prevent the crostini from sticking.

2. Slice the Baguette

Cut the baguette into approximately ½-inch slices. Arrange the bread in a single layer in the baking dish without overlapping the pieces.

3. Add the Roast Beef

Cut or tear the roast beef into pieces that fit comfortably over each baguette slice. Place one portion of beef on every slice.

4. Top With Brie

Slice the Brie into small pieces and place it over the roast beef. Try to cover most of the beef so the cheese can melt over it as it bakes.

5. Bake

Bake for 8–12 minutes, or until the baguette edges are crisp and the Brie is melted, soft, and beginning to bubble.

Watch carefully during the final few minutes to prevent the bread from becoming too dark.

6. Serve Warm

Remove the baking dish from the oven and let the crostini rest for 2–3 minutes. Carefully transfer them to a serving platter and serve while the Brie is still warm and creamy.

Tips for the Best Beef Brie Crostini

Choose a crusty baguette. A firm baguette provides a crisp base that holds up well under the melted cheese and roast beef.

Use thinly sliced beef. Thin slices warm quickly and remain tender without overpowering the Brie.

Let the Brie melt naturally. There’s no need to remove the rind unless you prefer to. The rind is edible and becomes soft as the cheese warms.

Pre-toast soft bread. If your baguette is particularly fresh or soft, toast the plain slices for 3–4 minutes before adding the beef and Brie.

Serve immediately. These crostini are at their best when the bread is crisp and the Brie is warm and gooey.

Easy Variations

Roast Beef and Brie Crostini With Sourdough

Swap the baguette for sliced sourdough bread for a tangy, hearty variation.

Peppery Roast Beef Crostini

Choose seasoned or pepper-crusted roast beef for extra savory flavor.

Multigrain Beef Crostini

A multigrain baguette adds a heartier texture and nutty flavor.

Creamy Brie Appetizer

For an especially rich result, choose a double-cream Brie that melts easily over the roast beef.

What to Serve With Beef Brie Crostini

These savory crostini pair beautifully with fresh, acidic sides that balance the richness of the beef and cheese.

Try serving them with:

• Simple green salad
• Sliced tomatoes
• Pickles or cornichons
• Fresh fruit
• Light vegetable salad
• Iced tea
• Sparkling water
• A glass of red wine for an adult gathering

Frequently Asked Questions

Can I make beef Brie crostini ahead of time?

You can assemble the crostini shortly before baking, but they are best baked just before serving. This keeps the baguette crisp and the Brie warm.

Can I use leftover roast beef?

Yes. Thinly sliced leftover roast beef works particularly well. Keep refrigerated until you’re ready to assemble the crostini.

Do I need to remove the Brie rind?

No. Brie rind is edible and can be left on. If you prefer a smoother texture, you can remove it before slicing.

How long do beef Brie crostini take to bake?

At 400°F (200°C), they generally need about 8–12 minutes, depending on the bread and how quickly your oven heats.

Can I use another type of cheese?

Brie is ideal because it becomes soft and creamy when heated, but similar soft-ripened cheeses can be used if desired.

Food Safety Tips

Keep roast beef refrigerated until you’re ready to assemble the crostini. Perishable foods should not remain at room temperature for more than 2 hours.

If using leftover cooked roast beef, refrigerate it promptly and use it within 3–4 days. Handle the hot baking dish carefully and place it on a heat-safe surface after removing it from the oven.

Recipe Summary

Recipe: 3-Ingredient Beef Brie Crostini
Prep Time: 8 minutes
Cook Time: 8–12 minutes
Total Time: About 20 minutes
Servings: 8–10 small servings
Yield: Approximately 20–24 crostini
Cuisine: American-inspired
Category: Appetizer
Method: Oven-baked