Combine water and almond milk in a medium saucepan and bring to a gentle boil over medium-high heat.
Stir in the rolled oats, chia seeds, hemp seeds, and ground cinnamon. Reduce heat to medium-low and simmer, stirring occasionally.
After 3 minutes, add the frozen mixed berries and dried cranberries to the simmering oats. Continue to cook, stirring frequently, until the mixture thickens to your desired consistency, about 4-5 additional minutes.
Remove the saucepan from the heat. Stir in the maple syrup.
Divide the prepared porridge into serving bowls. Garnish each serving with chopped pecans before enjoying.