Healthier Homestyle Roast Beef Sandwich

Ingredients

• •• 4 whole grain onion rolls (instead of white buns)
• •• 1/2 pound lean roast beef (93% lean)
• •• 2 tablespoons Greek yogurt-based sauce (recipe below)
• •• 1 tablespoon olive oil
• •• 1/4 teaspoon garlic powder
• •• 1/4 teaspoon onion powder
• •• Sea salt and black pepper to taste
• •Sauce:
• •• 1/4 cup Greek yogurt
• •• 1 tablespoon mayo (olive oil-based)
• •• 1 teaspoon horseradish
• •• Dash of salt