Easy Hearty Salmon Cobbler

For the filling you will need:
1 rutabaga
5 carrots
5 medium potatoes
1 large onion
1 cup mushrooms
2-3 tbsp butter
2-3 tbsp olive oil
about 6 tbsp salmon or old bay seasoning
4 tbsp flour
2 cans salmon
1 can peas
1 cup yogurt or sour cream
2 cups milk

for cobbler dough you will need:
4 1/2 cups biscuit mix like bisquick
2-3 tbsp melted butter
1 cup yogurt or sour cream
1 cup milk