Walk the footpath which starts at the end of the dead end street of the neighborhood. That's about a quarter-mile trot to the waterfront. Hang a right and walk about one-half mile. You'll see a small coffee shop across the highway called Green Flash. Nice spot for some coffee and a breakfast sandwich.
Jackie Rey's Ohana Grill is close to the house, a casual dining spot for lunch or supper.
Papa Kona is right on the water, and across the road from a cool little market set up in a parking lot.
Across the street from the water, right in the Kona downtown, are some delicious eats: Island Lava Java and Fosters Kitchen are great. Park behind the buildings for free. Let your food digest a bit, while you wander along the water and check out some shops.
If you want a special meal, ditch flip flops for nice shoes and head up to Merriman's Big Island. You might check in advance if reservations make sense.
Breakfast with a view? Take a short drive south to The Coffee Shack. They have excellent food and you cannot beat the ambience.
Anjali's personal fave: Lava Lava Beach Club. Head north to Waikaloa and enjoy a meal right on the beach. They also have live music!