Make the baked oatmeal: Preheat the oven to 350°F (180°C). Grease the insides of 4 8-ounce ramekins with cooking spray.
2. Step
In a large bowl, mix together the oats, pistachios, walnuts, salt, and cinnamon.
3. Step
In a medium bowl, whisk together the remaining melted butter, the eggs, Planet Oat® Oatmilk, and honey until well combined. Add the wet ingredients to the dry and mix together.
4. Step
Divide mixture evenly among the prepared ramekins.
5. Step
Set ramekins on a baking sheet and transfer to the oven. Bake for 25–30 minutes, or until the mixture is mostly cooked and the centers are firm and starting to rise.
6. Step
While the oatmeal bakes, make the honey syrup: In a medium saucepan, combine the water, honey, orange zest, lemon juice, and cinnamon stick. Bring to a simmer over medium heat, stirring frequently until the honey is melted. Reduce the heat to medium-low and simmer for 15 minutes, or until the mixture has thickened slightly and reduced to ½ cup total. Remove the pot from the heat and let the syrup cool while the oatmeal finishes baking.
7. Step
Make the topping: In a small bowl, toss together the pistachios, walnuts, and oats.
8. Step
Remove the oatmeal ramekins from the oven and use a chopstick or skewer to poke about 5 holes through the oatmeal all the way to the bottom of the ramekins. Top each with 3 tablespoons of the topping mixture and 2 tablespoons of the honey syrup, making sure to coat the nuts in the syrup.
9. Step
Return the ramekins to the oven for another 8–10 minutes, or until bubbling and starting to brown. Remove from the oven and let cool for 5–10 minutes before serving.