Swiss Chard Quiche with a Rice Crust

Name: Swiss Chard Quiche with a Rice Crust
Ingredients: 2 cups cold cooked rice (I like brown best; the version in the photo was with red rice, which is also good); 1 egg, separated; oil (vegetable, olive, coconut, what-have-you) for the pie plate; 1 bunch swiss chard; 3 eggs; 3/4 cup milk or yogurt (full-fat; you could also use cream or half and half); chopped fresh herbs (parsley is always welcome), salt, and pepper to taste; 1/2 cup shredded or crumbled cheese (cheddar is good, parmesan is good, feta is excellent)