Painted Desert Roasted Pepper Salad

Dressing:
1/2 cup extra-virgin olive oil
1/4 cup vegetable oil
2 garlic cloves
1 tablespoon chopped onion
1/4 cup cider vinegar
1/2 teaspoon salt
1/2 teaspoon granulated sugar
1/8 teaspoon dried Mexican oregano
Freshly-ground black pepper, to taste

Puree oils with garlic and onion in a blender. Pour the mixture through a strainer into a large jar with a lid. Combine with the remaining dressing ingredients and shake well. Refrigerate for 30 minutes.

Vegetables:
Combination of 4 mild green chiles,
    poblano, New Mexico and Anaheim, roasted
1 red bell pepper, roasted
1 green bell pepper, roasted
1 yellow bell pepper, roasted
Crumbled Cotija or aged Monterey Jack or
    grated Monterey Jack cheese
Romaine or other sturdy lettuce leaves
    for garnish (optional)

Slice the chiles and bell peppers into ribbons about 1/2 inch thick. Arrange them decoratively on a serving platter. Pour the dressing over the chiles and scatter the cheese on top. Garnish with lettuce around the plate's edge.