Easy Crock Pot Split Pea Soup and Green Garlic Biscuits

For Soup 
1 Bag pre soaked split peas
1 ham hock
1 parsnip (optional)
1 large yellow onion
1 Celery Heart
4 carrots
2 tbsp garlic powder or 3 cloves garlic
salt to taste

For Biscuits
2 1/2 cups Pre made biscuit mix
1 bunch garlic greens (or green onions)
1 tbsp garlic powder or 2 cloves garlic
1/2 tsp paprika
1 serving yogurt
4 tbsp softened butter
about 1 cup cold water
non stick cooking spray