Sassy Spinach Quiches
Makes 2 quiches, each serves 4.
Note: If you can't find shredded Swiss cheese and don't want to grate your own, substitute an additional cup of Cheddar.
1 (10-oz.) box frozen chopped spinach
1(15-oz.) pkg. refrigerated pie crusts, such as Pillsbury
1 large onion (for about 1 c. chopped)
1 c. shredded Swiss cheese (see Note)
1 c. shredded Cheddar cheese