Swiss Chard Gratin with Vegan Bechamel Recipe | Chocolate & Zucchini

Ingredients

• 1 kilo (2.2 pounds) Swiss chard ( blettes in French)
• olive oil
• 1 medium yellow onion , thinly sliced
• 240 ml (1 cup) non-dairy béchamel (store-bought or from recipe below)
• 1 egg (optional)
• 30 grams (1 ounce) freshly grated comté (substitute the gratable cheese of your choice or some nutritional yeast )
• 2 tablespoons oat bran (substitute bran from another grain, or dried breadcrumbs)
• salt, pepper
• 4 teaspoons vegetable oil
• 2 tablespoons flour
• 240 ml (1 cup) plain oat milk , or other non-dairy milk, cold or at room temperature
• salt, pepper, nutmeg