Noob Mqtt Tasmota question

Hello,
I am very new to home assistant.

I have installed the home assistant OS on a Pi4 and downloaded the mqtt and tasmota addons.

I have also flashed one RGB light with Tasmota but I cannot seem to get the light to show up in Home Assistant.

I am pretty sure that the issue is with the settings on the light but I am really struggling to work out what I need to do.

Any help would be greatly appeiciated.

I think you need to set an option in Tasmota to allow home assistant to discover it Home Assistant - Tasmota

Once you configure the Home Assistant integration every new Tasmota device with SetOption19 0 set, will be discovered automatically.