On an ciabatta bun with Sun Dried Tomato Aioli Vinaigrette and mixed baby greens.

Just check out those grill marks!

Agave Mustard Balsamic Vinaigrette Grilled Portobello Burgers
Ingredients
4 portobello mushroom caps
1/2 cup olive oil
1/4 cup balsamic vinegar
3 tbsp agave nectar
1 tbsp brown or dijon mustard
1 tbsp whole mustard seeds (toasted*)
Fresh cracked pepper and sea salt to taste
Directions
Whisk everything together in a bowl, makes enough to marinate 4 portobello caps. Marinate for at least twenty minutes. To grill, grill each side for at least 5-7 minutes, turning twice to get the cross hatch grill marks. The sweetness of the marinate carmelizes nicely on the grill. YUM!
*To toast your mustard seeds, use a dry pan or pot with a tight fitting lid. Put the seeds in the pot, cover, and turn on the heat to medium high. Don't go far, it will only take a few seconds for the seeds to start "popping." Once they start popping, turn off the heat...they're done!
Sun Dried Tomato Aioli
This works well on these burgers, and as a sanwich or bagel spread.
Ingredients
2 cloves garlic
1/4 cup sundried tomatoes (about 8 pieces) I use "packed in oil," if you use dry, add about a tbsp of olive oil
1/4 tsp paprika
1/4 cup pine nuts
3/4 cup vegan mayo
salt and pepper to taste
Directions
In a food processor, process garlic, tomatoes and paprika. In a bowl mix in the remaining ingredients. Store in an airtight container in the fridge until ready to use. Makes about 1 1/4 cups.