Layer slices of the Brie on one slice of buttered bread; butter on the outside. Layer apple, fig preserves, and spinach leaves on top of cheese. Top with 2nd slice of bread, buttered on outside.
Cook on a griddle or in a frying pan for 3-4 minutes on one side until it is browned. Flip over and weigh down with a second skillet to flatten them a bit and fry for another 3-4 minutes until bread has browned and cheese is melting. Slice in half to serve.
Notes
I wanted the top crust of these sandwiches to be the the crust from the top of the sesame seed bread loaf so I sliced the loaf lengthwise first, and then portioned out sandwich size slices; about 2-3 inches wide. I put a skillet on top of them when I grilled them to flatten the bread a bit and to make sure the crust got browned.