Venison without bratwurst shanks

1 1/2 pounds venison ground 2 cups sour cream divided 2 tablespoons ketchup 1 1/4 teaspoons salt 1/4 teaspoon black pepper * 1/2 teaspoon garlic salt 1/2[...]

3/4 cup onion chopped 1 teaspoon garlic chopped 2 tablespoons olive oil 2 pounds venison shoulder or leg, ground 2 teaspoons red pepper flakes 1 teaspoon[...]