Rinse strawberries and remove the stem.
Place a small pot over medium heat, add strawberries, sugar, and a splash of water. The sugar amount used will vary depending on how sweet the fruits are and how sweet you want the compote, so adjust to your preference.
Cook for about 5 minutes, then add the diced mango, lemon juice and continue to cook for additional 10 minutes or more on low heat. Depending on how you want your mango, if you want it very soft you can cook further, remove it from the heat when you get the preferred texture of mango. Stir frequently to avoid burning.
Serve warm and enjoy!