Meaty Spaghetti Sauce

INGREDIENTS

• 1 pound lean ground beef
• 1 pound pork sausage
• 2 ounces sliced pepperoni sausage
• 1 green bell pepper, chopped
• 1/2 red bell pepper, chopped
• 1 tablespoon minced garlic
• 2 onions, chopped
• 2 carrots, diced
• 2 stalks celery, chopped
• 1 (8 ounce) can sliced mushrooms
• 1 (15 ounce) can tomato sauce
• 2 (14.5 ounce) cans diced tomatoes
• 2 (6 ounce) cans tomato paste
• 3 cubes beef bouillon cube
• 3 bay leaves
• 1 tablespoon dried thyme
• 1 1/2 tablespoons dried oregano
• 1 1/2 teaspoons dried basil
• 1/2 teaspoon crushed red pepper flakes
• 1 teaspoon ground black pepper
• 1 tablespoon white sugar
• 1 cup beef broth