Hearty Sausage Stromboli

Saw this recipe in my new Simple & Delicious Magazine...I want to make this for my first Sunday Dinner I do for family and friends.

• Ready In: 40 mins
• Serves: 6
• Yields: 1 loaf

Ingredients

• 1⁄2 lb bulk Italian sausage
• 1⁄4 lb  ground round
• 1⁄2 cup onion, chopped
• 1⁄2 cup mushroom, sliced
• 1⁄4 cup green pepper, chopped
• 1⁄2 cup water
• 1⁄3 cup tomato paste
• 2  tablespoons  grated parmesan cheese
• 1⁄2 teaspoon salt
• 1⁄4 teaspoon dried oregano
• 1⁄4 teaspoon garlic, minced
• 1⁄8 teaspoon dried rosemary, crushed
• 1  loaf  Italian bread, unsliced
• 6  slices mozzarella cheese

Directions

1. In large skillet, cook the sausage, beef, onion, mushrooms and green pepper over medium heat until meat is no longer pink; drain. Stir in the water, tomato paste, parmesan cheese, salt, oregano, garlic and rosemary. Bring to a boil. Reduce heat; simmer, uncovered for 5 minutes or until thickened.
2. Meanwhile, cut top third off loaf of bread; carefully hollow out bottom, leaving a 1/2 inch shell (discard removed bread).
3. Line bottomhalf with three mozzarella cheese slices; top with sausage mixture and remaining cheese. Replace bread top. Wrap sandwich loaf in foil.
4. Bake at 400 degrees for 15-20 minutes or until cheese is melted. Let stand for 5 minutes before slicing.