Spicy Slow-Cooker Beef Chili

Ingredients

• 3 tablespoons vegetable oil
• 2 medium yellow onions, medium dice
• 1 medium red bell pepper, medium dice
• 6 medium garlic cloves, finely chopped
• 1/4 cup chili powder
• 1 tablespoon ground cumin
• 2 pounds lean ground beef
• 1 1/2 teaspoons kosher salt, plus more as needed
• 1 (28-ounce) can diced tomatoes with their juices
• 1 (14-ounce) can tomato sauce
• 2 (15-ounce) cans kidney beans, drained and rinsed
• 1/4 cup coarsely chopped pickled jalapeños or green chiles, drained
• shredded cheddar cheese
• thinly sliced scallions
• sour cream