Make It
Step 1
Sprinkle 1/4 teaspoon bouillon evenly on tomato slices and cheese; set aside.
Step 2
Combine avocado, media crema, lemon juice and 1/4 teaspoon bouillon in small bowl; set aside.
Step 3
Heat oil in small skillet over medium-high heat. Add onion; cook, stirring occasionally, for 5 minutes or until tender. Add remaining bouillon and thyme. Spread onion mixture on 1 slice of bread. Cover with second slice of bread. Spread second slice of bread with avocado mixture; top with lettuce, tomato and cheese. Top with third slice of bread. Cut into quarters. Place olives on center of each sandwich quarter and secure with wooden picks.