Line a 9x13-inch baking dish with waxed paper so that the paper hangs over the edges of dish.
Combine dates and water in a food processor or blender; process until a paste forms, adding more water if needed to thin it.
Combine oats, coconut, chocolate chips, almonds, pumpkin seeds, sunflower seeds, and cinnamon in a large bowl. Add date paste, almond butter, applesauce, and vanilla extract; mix, using your hands, until wet ingredients are fully incorporated.
Press mixture into the prepared baking dish. Cover with another piece of waxed paper and press down using a can or mini roller. Freeze for 1 hour.
Remove dish from freezer and lift out of dish using the edges of the waxed paper. Cut into 25 squares.
