Tomato Pesto Sandwich

Ingredients

• 1/4 cup pine nuts or shelled, salted sunflower seeds
• 1 garlic clove
• 1 1/2 tablespoons fresh lemon juice
• 1 teaspoon red wine vinegar
• 1 cup packed basil leaves
• 5-6 tablespoons extra-virgin olive oil
• 2-3 tablespoons fresh Parmesan, shaved
• Salt to taste
• 1 baguette
• 1 (6.5-ounce) container garlic-and-herb soft, spreadable cheese
• 4-5 Roma tomatoes or 2-3 beefsteak tomatoes
• Red onion, thinly sliced