Chop the strawberries and rhubarb into chunks. Add the fruit to the saucepan.
Add the honey and lemon to the saucepan. Add water to the fruit mixture, just enough to cover it.
Place the saucepan on medium heat and let the mixture come to a boil. Then, turn the heat to medium-low and let the mixture simmer for about 15-minutes.
After 15 minutes, see if the fruit can be mashed with a fork. If it can, it is done. If not, continue cooking the fruit.
When the fruit is soft, take the jam off the heat and add the chia seeds to let it thicken. When the jam is cool, use a fork to mash the jam to the desired consistency.
