Shrimp-and-Crab Nachos

INGREDIENTS

• 1 teaspoon olive oil
• 1 pound peeled and deveined shrimp
• 2 to 3 teaspoons toasted ground cumin
• 1 teaspoon minced garlic
• 1 pound jumbo lump crabmeat, cleaned and picked
• 3/4 cup sour cream
• 1 bunch green onions, sliced
• 1 (9-ounce) bag yellow, white, or blue corn tortilla chips
• 3 cups grated pepper Jack cheese
• 1/2 cup sliced pickled jalapeño