Prepare the salsa ingredients: fire-roasted tomatoes, diced onion, garlic, white wine vinegar or lime juice, cayenne or crushed red pepper, salt, and cilantro.

Pulse the salsa ingredients in a food processor or blender until chopped and blended to your preference.

Preheat a grill to medium-high heat.

Remove the pit from each avocado half.

In a small bowl, whisk together lime juice and olive oil.

Brush each avocado half with the lime juice marinade.

Place each prepared avocado half, flesh side down, over the hot grill.

Cook for about 5-7 minutes, or until grill marks appear and the avocado is warm, but not overly mushy.

Remove the avocado halves from the grill.

Fill the hole, left by the pits, with salsa.

Squeeze a lime wedge over the avocado halves.

Sprinkle lightly with salt.

Top the salsa with a dollop of sour cream or Greek yogurt, if using.

Consume with a fork or use baked pita chips.