One of the simplest Rice varieties out there is the Lemon Rice. It's very simple to mix up and you can add variations of your own too!
Here's my mom's version..

LEMON RICEIngredients :
Rice - 1/2 cup
Sesame oil - 1/2 tsp
Mustard seeds - 1/4 tsp
Bengal gram(chana dal) - 1/4 tsp
Asafetida (Hing) pwd - 1/8 tsp
Turmeric pwd - 1/4 tsp
Green chilies - 2 medium
Curry leaves - a few
Lemon - 1 medium
Chopped capsicum, carrots, boiled peas (optional) - 1/2 cup
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Method :
1. Pressure cook rice with equal measure of water, basically Pulao consistency. Once pressure subsides, transfer to a plate and let cool to room temperature. Gently fluff it using a fork.
2. Heat oil in a pan, add mustard seeds & let splutter.

3. Add chana dal, chopped or slit green chilies, curry leaves and fry for a minute. If using vegetables, add them in at this point and cook till 3/4th done.
NOTE: Add salt to taste if adding veggies else add them later directly to the rice.

4. Add hing pwd, turmeric pwd, give a quick stir and remove from flame.

5. Add the tempering mix to the rice along with salt and gently mix till all the rice is well-coated.

6. Once well-mixed, squeeze half  lemon and check taste. Squeeze the other half if you want it more tangy.
Serve slightly warm.

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