Spread your toast (after it's been toasted) with hummus.
Layer the avocado & tomatoes.
Add crumbled feta over everything.
Sprinkle with chili powder.
Tip: I like to drizzle avocado oil on my toast before everything to give my bread a little more moisture but I promise it tastes just as good without it. In fact, you won't even taste it...it's more for freaks like me who can't eat things "dry."