Meatless Spaghetti

Ingredients

• 6 garlic cloves, minced
• 1 cup chopped celery
• 1 medium onion, chopped
• 2 tablespoons canola oil
• 6 small zucchini, chopped (about 2 pounds)
• 1 medium green pepper
• 1 can (6 ounces) pitted ripe olives, drained and sliced
• 4 beef bouillon cubes or 2 vegetable bouillon cubes
• 1 cup hot water
• 1 jar (6 ounces) sliced mushrooms, drained
• 1 can (28 ounces) diced tomatoes, undrained
• 2 cans (15 ounces each) tomato sauce
• 1 can (6 ounces) tomato paste
• 1 tablespoon brown sugar, optional
• 2 teaspoons dried basil
• 2 teaspoons dried oregano
• 2 teaspoons dried parsley flakes
• 1 teaspoons salt, optional
• 1/2 teaspoon pepper
• 2 pounds spaghetti, cooked and drained