Zesty Beefy Bites

INGREDIENTS

• 8 ounces pasteurized process cheese, chopped
• 1/2 cup Hellmann's® or Best Foods® Real Mayonnaise
• 1/4 cup horseradish
• 1 clove garlic, finely chopped
• 1 loaf (12 in.) French or Italian bread, halved lengthwise
• 1/2 small red onion, thinly sliced
• 3/4 lb. thinly sliced deli roast beef