Creamy High Protein Pistachio Pudding Overnight Oats

Name: Creamy High Protein Pistachio Pudding Overnight Oats
Ingredients: 2 cups rolled oats; 2 ¼ - 2½ cups vanilla or unflavored almond milk (or preferred milk (see notes)); 1 cup Greek yogurt (plain or vanilla) (sub with higher protein plant-based yogurt for a dairy-free option); 3 tablespoons Instant Jell-O Pistachio Pudding Mix; 3 tablespoons chia seeds; 2 scoops vanilla or unflavored protein powder (optional); 1 teaspoon honey (or more, taste test after refrigeration); Toppings: crushed pistachios, whipped cream, sliced bananas or mixed berries, dark chocolate chips (optional)