Big mistake when texturing

hey guys, I created a temple in Blender the other day, but when it came time to texture it, I didn’t actually texture it. I simply unwrapped a piece of my temple and applied an image to it. Now I have no materials, UV maps or anything. Will I have to retexture the entire project or is there a quick fix?

thanks

You can save the UV map, then apply a material and re-assign the uv map.