Yes!! When we went through lean times my dad would make rice with a fried egg and furikake! He also made ramen with an egg and veggies.

Also I’m Puerto Rican so rice and beans were a staple too! My grandma added pieces of calabasa (pumpkin) or sweet potato to her pinto beans along with some sazon (there are more brands than just goya- check it out…

Loiza brand is my favorite but it’s a little pricey

Organic Humboldt Sazon Ok this one is in bulk so the upfront cost is a lot but it will last forever!! $13.99+

Badia Sazon $2.66 at Walmart or $4.94 on Amazon

Another weird but good combo my cousin made up - baked potatoes with canned tuna/mayo and maybe some other toppings like onion or green onion, salt and pepper. It’s like tuna salad upgraded to a filling dinner for some cheap protein.