Preheat oven to 375 degrees F.
In a large bowl, mix rhubarb, strawberries, orange juice, orange zest, and sugar until well combined. Spread evenly in a pie pan or 8 x 8 baking dish.
In another bowl, mix together oats, almonds, four, sea salt, cinnamon, and ginger. Add maple syrup and stir until evenly mixed.
In pie pan or small baking dish, top fruit evenly with crumble mixture and cover with foil or baking top. Bake for 25 minutes, uncover, and cook an additional 20 minutes. Let cool for 10-15 minutes before serving.