Grilled Skirt Steak Sandwich with California Avocado and Blue Cheese - California Avocados

Ingredients

• 2 (8 to 10 oz.) skirt steaks
• 1 medium, sweet yellow onion, cut in 1/4-inch slices
• 2 small tomatoes, cut in 1/4-inch slices
• 2 Tbsp. canola oil
• As needed Salt and freshly ground black pepper, to taste
• 2 Tbsp. Extra virgin olive oil
• 2 Tbsp. balsamic vinegar
• 2 tsp. chopped, fresh thyme leaves
• 4 (6-inch) pieces of baguette, sliced in half lengthwise and lightly toasted
• California Avocado Blue Cheese Spread (see make-ahead recipe)
• 1/2 ripe Fresh California avocado, thinly sliced, for garnish
• 4 fresh thyme sprigs, for garnish
• As needed Cracked black pepper, for garnish