Instant Pot Loaded Potato-Cauliflower Soup - Chew Nibble Nosh

Ingredients

• 1 Tbsp. olive oil
• 1 medium sized sweet onion, diced
• 2 slices of bacon, chopped (plus more cooked and crumbled for topping, if desired)
• 3 cloves garlic, smashed
• 1 large head of cauliflower, broken into large florets
• 1 lb. Yukon Gold potatoes, peeled and cut into cubes
• 4 cups chicken or vegetable broth
• salt and pepper
• 1 cup whole milk
• 1 cup shredded extra sharp cheddar cheese, divided
• chopped green onions, optional