Easy Does It Spaghetti(Crock-Pot)

Ingredients

• 1 lb. ground beef
• 1 Tbsp. instant minced onion
• 1 1/2 tsp. salt
• 1/2 tsp. garlic powder
• 1/2 tsp. dry mustard
• 1/4 tsp. mace
• 1/4 tsp. allspice
• 1/4 tsp. pepper
• 4 oz. spaghetti (1 1/4 c.), broken
• 1 (8 oz.) can tomato sauce
• 1 (4 oz.) can mushrooms (if desired)
• 3 c. tomato juice