On a plate wider than the rim of the margarita glass, combine equal parts of tajin fruit seasoning and salt well. Moisten the rim with a lemon wedge, then dip the glass onto the tajin and salt seasoning. Do this for each glass. Set it aside.

Wash the strawberries and remove the stems and leaves. Add them into a blender with the frozen watermelon cubes, mint, triple sec, tequila and crushed ice. If you don’t have an ice maker in your fridge that’s ok. You can put regular ice cubes from a tray in a large zip-lock bag and crush them into smaller chunks by hitting them with a rolling pin on a hard durable surface. If you have a good blender, you can also just add it to the blender first and crush the ice by giving it a few pulses before adding the rest of the ingredients.

Blend the watermelon, strawberries, ice, mint, and liquors in the blender until there are no large pieces of mint leaves or fruit left. Serve in the prepared margarita glasses and top with minced strawberries and mint if desired.