Impossible Rhubarb Pie

3 cups chopped rhubarb
4 eggs
1/2 cup Bisquick
3 tablespoons melted butter
1/4 teaspoon salt
1 1/2 cups granulated sugar
1 teaspoon vanilla extract
1 cup milk

Heat oven to 375 degrees F. Grease a 10-inch pie pan.

Put rhubarb into pan. Blend all remaining ingredients for 3 minutes. Pour over rhubarb. Let set for a few minutes. Bake for 40 to 45 minutes.