Mom's Spaghetti Sauce Recipe

INGREDIENTS

• 1 pound ground beef
• 1 medium onion, chopped
• 1 medium green pepper, chopped
• 8 to 10 fresh mushrooms, sliced
• 3 celery ribs, chopped
• 1-1/2 teaspoons minced garlic
• 2 cans (14-1/2 ounces each) Italian stewed tomatoes
• 1 jar (26 ounces) spaghetti sauce
• 1/2 cup ketchup
• 2 teaspoons brown sugar
• 1 teaspoon sugar
• 1 teaspoon salt
• 1 teaspoon dried oregano
• 1 teaspoon chili powder
• 1 teaspoon prepared mustard
• Hot cooked spaghetti