Winter Tray Bake with Baby Potato, Cauliflower and Grapes - Good Eatings

Ingredients

• 10-12 small/ 450 g baby potatoes, halved
• Olive oil, for coating
• Salt and black pepper, to taste
• 0,5 head/ 450 g cauliflower
• 2 small / 150 g red onion
• 250 g red seedless grapes
• 1 can / 230 g cooked cannellini beans
• 0,25 cup nutritional yeast
• 1 tbsp tahini
• 1,5 tsp white wine vinegar
• 1 tsp onion powder