Toasted Ham and Cheese Croissant Sandwiches

Name: Toasted Ham and Cheese Croissant Sandwiches
Cuisine: European, American, Mediterranean, French
Ingredients: 2 Tbs. yellow mustard seeds; 2 Tbs. brown mustard seeds; 1/4 cup apple cider vinegar; 2 Tbs. water; 1 small pinch of salt; 2 Tbs. honey; 4 large croissants, sliced in half lengthwise; 4-8 Tbs. fig butter (or fig jam, anything you have!); 8-14 slices good deli ham; 1 (6 oz) wedge Roth’s Grand Cru cheese, thinly sliced; A few Tbs. whole grain mustard; Micro greens, or any greens you want to use; About a Tbs. everything bagel seasoning