Crock Pot Mac and Cheese

• 1lb box Rotini pasta
• 2 cups cheddar cheese, shredded
• 2 cups montery jack cheese, shredded
• Half of a large block of Velveeta cheese
• 3 cups milk
• Garlic salt
• 1/2 stick of butter
• breadcrumbs (any flavor) - optional but recommended

1. Cook pasta in boiling water for 1/2 the time on the box, usually about 7 minutes. Strain.
2. Place pasta and all other ingredients except breadcrumbs in the crockpot and mix well.
3. Cook on low for 4 hours or high for 2 hours.
4. If cooking on low, check periodically as it is sometimes done sooner.
5. Approximately 30-45 minutes before end time, sprinkle top with breadcrumbs.
6. When the breadcrumbs become crispy, it is ready.