Dijon Sirloin Tip Roast with Brown Butter Mushrooms - Big Bear's Wife

Ingredients

• 1 Sirloin Tip Roast (about 2.5 pounds), thawed if frozen
• 2 -4 tablespoons olive oil
• Salt and Pepper
• 2 tablespoons Dijon Mustard
• 1 teaspoon fresh thyme
• 1 teaspoon lemon juice
• 1/2 teaspoon pepper
• 1/4 teaspoon salt
• 1/2 teaspoon onion powder
• 1/2 teaspoon garlic powder
• 1 tablespoon butter + 1 stick butter
• 1 tablespoon olive oil
• 8 ounces sliced mushrooms
• 2 whole cloves garlic
• 2 sprigs fresh thyme
• 2 pounds baby carrots
• 1 pound peeled diced potatoes